SpringBoot电商项目前后端界面搭建
目录
一、SpringBoot项目简介
1、技术点介绍
2、数据表介绍
二、构建SpringBoot项目
1.创建SpringBoot项目并配置POM
2.配置application.yml
3.启动类配置
4.首页访问 ,导入前端页面及页面对应的js/css/images文件
三、实现首页功能
0）导入帮助类
config：
exception:
Generator：
Utils：
在generater类运行自动生成代码：
1）创建公共跳转控制器PageController
2）使用Mybatis-plus反向生成代码(Goods商品信息)
3）创建IndexController并定义商品查询请求处理方法
四、用户明文登录
创建UserController类实现用户登录
1.1）构建UserDto，定义mobile和password属性
1.2）创建UserController类
1.3）定义userLogin(UserDto userDto,HttpServletRequest req,HttpServletResponse resp)
1.4）定义响应封装类JsonResponseBody和JsonResponseStatus
1.5）在IUserService中定义userLogin(UserVo userVo)，并返回JsonResponseBody
1.6）全局异常处理
1.7）自定义注解参数校验（JSR303）
login.js:
测试多种情况:
五、前端及数据库密码加密
UserServiceImpl.java变更如下
login.js变更如下:
六、服务端客户端登录密码管理
UserServiceImpl.java变更如下
一、SpringBoot项目简介
1、技术点介绍
前端：Freemarker、jQuery
后端：SpringBoot、MyBatisPlus、Lombok
中间件：Redis
2、数据表介绍
用户表：t_user
商品表：t_goods
订单表：t_order
订单项表：t_order_item
数据源表：t_dict_type
数据项表：t_dict_data
后续微服务秒杀项目所用：
秒杀商品表：t_seckill_goods
秒杀订单表：t_seckill_order
二、构建SpringBoot项目
起初搭建时，可以不勾选任何组件
1.创建SpringBoot项目并配置POM
pom依赖：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.9.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.ycx</groupId>
<artifactId>spbootpro</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spbootpro</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!--freemarker-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<!--spring web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--mysql-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
<version>5.1.44</version>
</dependency>
<!--lombok-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<!--junit-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<!-- mybatis plus依赖 -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.4.0</version>
</dependency>
<!-- mybatis-plus-generator依赖 -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>3.4.0</version>
</dependency>
<!--hariki-->
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
</dependency>
<!-- MD5依赖 -->
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.6</version>
</dependency>
<!-- valid验证依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<!--redis-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!--commons-pool2 对象池依赖 2.0版本的lettuce需要-->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
</dependency>
<!--spring-session将session借助于第三方存储（redis/mongodb等等），默认redis-->
<!--<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
</dependency>-->
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-easysdk</artifactId>
<version>2.0.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
2.配置application.yml
1）添加数据库及连接池配置
2）添加freemarker配置
3）添加mybatis-plus配置
4）添加logging日志配置
yml文件：
server:
port: 8081
servlet:
context-path: /
spring:
datasource:
url: jdbc:mysql://localhost:3306/spbootpro?useSSL=false&useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC&characterEncoding=UTF8
driver-class-name: com.mysql.jdbc.Driver
password: 1234
username: root
hikari:
# 最小空闲连接数量
minimum-idle: 5
# 空闲连接存活最大时间，默认600000（10分钟）
idle-timeout: 180000
# 连接池最大连接数，默认是10
maximum-pool-size: 10
# 此属性控制从池返回的连接的默认自动提交行为,默认值：true
auto-commit: true
# 连接池名称
pool-name: MyHikariCP
# 此属性控制池中连接的最长生命周期，值0表示无限生命周期，默认1800000即30分钟
max-lifetime: 1800000
# 数据库连接超时时间,默认30秒，即30000
connection-timeout: 30000
freemarker:
#设置编码格式
charset: UTF-8
#后缀
suffix:
#文档类型
content-type: text/html
#模板前端
template-loader-path: classpath:/templates/
#启用模板
enabled: true
mvc:
static-path-pattern: /static/**
redis:
#服务端IP
host: 192.168.122.128
#端口
port: 6379
#密码
password: 123456
#选择数据库
database: 9
#超时时间
timeout: 10000ms
#Lettuce的连接是基于Netty的，连接实例（StatefulRedisConnection）可以在多个线程间并发访问
#Lettuce线程安全，Jedis线程非安全
lettuce:
pool:
#最大连接数，默认8
max-active: 8
#最大连接阻塞等待时间，默认-1
max-wait: 10000ms
#最大空闲连接，默认8
max-idle: 200
#最小空闲连接，默认0
min-idle: 5
#mybatis-plus配置
mybatis-plus:
#所对应的 XML 文件位置
mapper-locations: classpath*:/mapper/*Mapper.xml
#别名包扫描路径
type-aliases-package: com.ycx.spbootpro.model
configuration:
#驼峰命名规则
map-underscore-to-camel-case: true
#日志配置
logging:
level:
com.ycx.spbootpro.mapper: debug
3.启动类配置
package com.ycx.spbootpro;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.transaction.annotation.EnableTransactionManagement;
@MapperScan({"com.ycx.spbootpro.mapper"})
@EnableTransactionManagement
@SpringBootApplication
public class SpbootproApplication {
public static void main(String[] args) {
SpringApplication.run(SpbootproApplication.class, args);
}
}
4.首页访问 ,导入前端页面及页面对应的js/css/images文件
IndexController ：
package com.ycx.spbootpro.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/**
* @author 杨总
* @create 2022-11-04 21:02
*/
@Controller
public class IndexController {
@RequestMapping("/")
public String index(){
// 前缀+逻辑视图名+后缀
return "index.html";
}
}
运行访问：
三、实现首页功能
0）导入帮助类
config：
RedisConfig ：
package com.ycx.spbootpro.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
@Configuration
public class RedisConfig {
@Bean
public RedisTemplate<String,Object> redisTemplate(RedisConnectionFactory connectionFactory){
RedisTemplate<String,Object> redisTemplate=new RedisTemplate<>();
redisTemplate.setStringSerializer(new StringRedisSerializer());
redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
redisTemplate.setConnectionFactory(connectionFactory);
redisTemplate.afterPropertiesSet();
return redisTemplate;
}
}
exception:
BusinessException ：
package com.ycx.spbootpro.exception;
import com.ycx.spbootpro.utils.JsonResponseStatus;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class BusinessException extends RuntimeException {
private JsonResponseStatus jsonResponseStatus;
}
GlobalExceptionHandler ：
package com.ycx.spbootpro.exception;
import com.ycx.spbootpro.utils.JsonResponseBody;
import com.ycx.spbootpro.utils.JsonResponseStatus;
import org.springframework.validation.BindException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
@RestControllerAdvice
public class GlobalExceptionHandler {
@ExceptionHandler
public JsonResponseBody<?> exceptionHandler(Exception e){
JsonResponseBody<?> jsonResponseBody=null;
e.printStackTrace();
if(e instanceof BusinessException){
BusinessException ex= (BusinessException) e;
jsonResponseBody=new JsonResponseBody<>(ex.getJsonResponseStatus());
}else if(e instanceof BindException){
BindException ex= (BindException) e;
String msg = ex.getBindingResult().getAllErrors().get(0).getDefaultMessage();
jsonResponseBody=new JsonResponseBody<>(JsonResponseStatus.BIND_ERROR);
jsonResponseBody.setMsg(msg);
}else{
System.out.println("aaaaaa");
}
return jsonResponseBody;
}
}
Generator：
CodeGenerator ：
package com.ycx.spbootpro.generator;
import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class CodeGenerator {
/**
* <p>
* 读取控制台内容
* </p>
*/
public static String scanner(String tip) {
Scanner scanner = new Scanner(System.in);
StringBuilder help = new StringBuilder();
help.append("请输入" + tip + "：");
System.out.println(help.toString());
if (scanner.hasNext()) {
String ipt = scanner.next();
if (StringUtils.isNotBlank(ipt)) {
return ipt;
}
}
throw new MybatisPlusException("请输入正确的" + tip + "！");
}
public static void main(String[] args) {
// 代码生成器
AutoGenerator mpg = new AutoGenerator();
// 全局配置
GlobalConfig gc = new GlobalConfig();
String projectPath = System.getProperty("user.dir") + "/spbootpro";
gc.setOutputDir(projectPath + "/src/main/java");
gc.setAuthor("yangzong");
gc.setOpen(false);
gc.setBaseColumnList(true);
gc.setBaseResultMap(true);
// gc.setSwagger2(true); 实体属性 Swagger2 注解
mpg.setGlobalConfig(gc);
// 数据源配置
DataSourceConfig dsc = new DataSourceConfig();
dsc.setUrl("jdbc:mysql://localhost:3306/spbootpro?useUnicode=true&useSSL=false&characterEncoding=utf8");
// dsc.setSchemaName("public");
dsc.setDriverName("com.mysql.jdbc.Driver");
dsc.setUsername("root");
dsc.setPassword("1234");
mpg.setDataSource(dsc);
// 包配置
PackageConfig pc = new PackageConfig();
//pc.setModuleName(scanner("模块名"));
pc.setParent("com.ycx.spbootpro");
//设置包名
pc.setEntity("model");
mpg.setPackageInfo(pc);
// 自定义配置
InjectionConfig cfg = new InjectionConfig() {
@Override
public void initMap() {
// to do nothing
}
};
// 如果模板引擎是 freemarker
String templatePath = "/templates/mybatis-generator/mapper2.xml.ftl";
// 如果模板引擎是 velocity
// String templatePath = "/templates/mapper.xml.vm";
// 自定义输出配置
List<FileOutConfig> focList = new ArrayList<>();
// 自定义配置会被优先输出
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输出文件名 ， 如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化！！
return projectPath + "/src/main/resources/mapper/" + pc.getModuleName()
+ "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
}
});
/*
cfg.setFileCreate(new IFileCreate() {
@Override
public boolean isCreate(ConfigBuilder configBuilder, FileType fileType, String filePath) {
// 判断自定义文件夹是否需要创建
checkDir("调用默认方法创建的目录，自定义目录用");
if (fileType == FileType.MAPPER) {
// 已经生成 mapper 文件判断存在，不想重新生成返回 false
return !new File(filePath).exists();
}
// 允许生成模板文件
return true;
}
});
*/
cfg.setFileOutConfigList(focList);
mpg.setCfg(cfg);
// 配置模板
TemplateConfig templateConfig = new TemplateConfig();
// 配置自定义输出模板
//指定自定义模板路径，注意不要带上.ftl/.vm, 会根据使用的模板引擎自动识别
templateConfig.setMapper("templates/mybatis-generator/mapper2.java");
templateConfig.setEntity("templates/mybatis-generator/entity2.java");
templateConfig.setService("templates/mybatis-generator/service2.java");
templateConfig.setServiceImpl("templates/mybatis-generator/serviceImpl2.java");
templateConfig.setController("templates/mybatis-generator/controller2.java");
templateConfig.setXml(null);
mpg.setTemplate(templateConfig);
// 策略配置
StrategyConfig strategy = new StrategyConfig();
strategy.setNaming(NamingStrategy.underline_to_camel);
strategy.setColumnNaming(NamingStrategy.underline_to_camel);
//strategy.setSuperEntityClass("你自己的父类实体,没有就不用设置!");
strategy.setEntityLombokModel(true);
strategy.setRestControllerStyle(true);
strategy.setEntitySerialVersionUID(false);
// 公共父类
//strategy.setSuperControllerClass("你自己的父类控制器,没有就不用设置!");
// 写于父类中的公共字段
strategy.setSuperEntityColumns("id");
strategy.setInclude(scanner("表名，多个英文逗号分割").split(","));
strategy.setControllerMappingHyphenStyle(true);
strategy.setTablePrefix("t_");
mpg.setStrategy(strategy);
mpg.setTemplateEngine(new FreemarkerTemplateEngine());
mpg.execute();
}
}
Utils：
CookieUtils ：
package com.ycx.spbootpro.utils;
import lombok.extern.slf4j.Slf4j;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
@Slf4j
public class CookieUtils {
/**
*
* @Description: 得到Cookie的值, 不编码
* @param request
* @param cookieName
* @return
*/
public static String getCookieValue(HttpServletRequest request, String cookieName) {
return getCookieValue(request, cookieName, false);
}
/**
*
* @Description: 得到Cookie的值
* @param request
* @param cookieName
* @param isDecoder
* @return
*/
public static String getCookieValue(HttpServletRequest request, String cookieName, boolean isDecoder) {
Cookie[] cookieList = request.getCookies();
if (cookieList == null || cookieName == null) {
return null;
}
String retValue = null;
try {
for (int i = 0; i < cookieList.length; i++) {
if (cookieList[i].getName().equals(cookieName)) {
if (isDecoder) {
retValue = URLDecoder.decode(cookieList[i].getValue(), "UTF-8");
} else {
retValue = cookieList[i].getValue();
}
break;
}
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return retValue;
}
/**
*
* @Description: 得到Cookie的值
* @param request
* @param cookieName
* @param encodeString
* @return
*/
public static String getCookieValue(HttpServletRequest request, String cookieName, String encodeString) {
Cookie[] cookieList = request.getCookies();
if (cookieList == null || cookieName == null) {
return null;
}
String retValue = null;
try {
for (int i = 0; i < cookieList.length; i++) {
if (cookieList[i].getName().equals(cookieName)) {
retValue = URLDecoder.decode(cookieList[i].getValue(), encodeString);
break;
}
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return retValue;
}
/**
*
* @Description: 设置Cookie的值 不设置生效时间默认浏览器关闭即失效,也不编码
* @param request
* @param response
* @param cookieName
* @param cookieValue
*/
public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,
String cookieValue) {
setCookie(request, response, cookieName, cookieValue, -1);
}
/**
*
* @Description: 设置Cookie的值 在指定时间内生效,但不编码
* @param request
* @param response
* @param cookieName
* @param cookieValue
* @param cookieMaxage
*/
public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,
String cookieValue, int cookieMaxage) {
setCookie(request, response, cookieName, cookieValue, cookieMaxage, false);
}
/**
*
* @Description: 设置Cookie的值 不设置生效时间,但编码
* 在服务器被创建，返回给客户端，并且保存客户端
* 如果设置了SETMAXAGE(int seconds)，会把cookie保存在客户端的硬盘中
* 如果没有设置，会默认把cookie保存在浏览器的内存中
* 一旦设置setPath()：只能通过设置的路径才能获取到当前的cookie信息
* @param request
* @param response
* @param cookieName
* @param cookieValue
* @param isEncode
*/
public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,
String cookieValue, boolean isEncode) {
setCookie(request, response, cookieName, cookieValue, -1, isEncode);
}
/**
*
* @Description: 设置Cookie的值 在指定时间内生效, 编码参数
* @param request
* @param response
* @param cookieName
* @param cookieValue
* @param cookieMaxage
* @param isEncode
*/
public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,
String cookieValue, int cookieMaxage, boolean isEncode) {
doSetCookie(request, response, cookieName, cookieValue, cookieMaxage, isEncode);
}
/**
*
* @Description: 设置Cookie的值 在指定时间内生效, 编码参数(指定编码)
* @param request
* @param response
* @param cookieName
* @param cookieValue
* @param cookieMaxage
* @param encodeString
*/
public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,
String cookieValue, int cookieMaxage, String encodeString) {
doSetCookie(request, response, cookieName, cookieValue, cookieMaxage, encodeString);
}
/**
*
* @Description: 删除Cookie带cookie域名
* @param request
* @param response
* @param cookieName
*/
public static void deleteCookie(HttpServletRequest request, HttpServletResponse response,
String cookieName) {
doSetCookie(request, response, cookieName, null, -1, false);
}
/**
*
* @Description: 设置Cookie的值，并使其在指定时间内生效
* @param request
* @param response
* @param cookieName
* @param cookieValue
* @param cookieMaxage cookie生效的最大秒数
* @param isEncode
*/
private static final void doSetCookie(HttpServletRequest request, HttpServletResponse response,
String cookieName, String cookieValue, int cookieMaxage, boolean isEncode) {
try {
if (cookieValue == null) {
cookieValue = "";
} else if (isEncode) {
cookieValue = URLEncoder.encode(cookieValue, "utf-8");
}
Cookie cookie = new Cookie(cookieName, cookieValue);
if (cookieMaxage > 0)
cookie.setMaxAge(cookieMaxage);
if (null != request) {// 设置域名的cookie
String domainName = getDomainName(request);
log.info("========== domainName: {} ==========", domainName);
if (!"localhost".equals(domainName)) {
cookie.setDomain(domainName);
}
}
cookie.setPath("/");
response.addCookie(cookie);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
*
* @Description: 设置Cookie的值，并使其在指定时间内生效
* @param request
* @param response
* @param cookieName
* @param cookieValue
* @param cookieMaxage cookie生效的最大秒数
* @param encodeString
*/
private static final void doSetCookie(HttpServletRequest request, HttpServletResponse response,
String cookieName, String cookieValue, int cookieMaxage, String encodeString) {
try {
if (cookieValue == null) {
cookieValue = "";
} else {
cookieValue = URLEncoder.encode(cookieValue, encodeString);
}
Cookie cookie = new Cookie(cookieName, cookieValue);
if (cookieMaxage > 0)
cookie.setMaxAge(cookieMaxage);
if (null != request) {// 设置域名的cookie
String domainName = getDomainName(request);
log.info("========== domainName: {} ==========", domainName);
if (!"localhost".equals(domainName)) {
cookie.setDomain(domainName);
}
}
cookie.setPath("/");
response.addCookie(cookie);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
*
* @Description: 得到cookie的域名
* @return
*/
private static final String getDomainName(HttpServletRequest request) {
String domainName = null;
String serverName = request.getRequestURL().toString();
if (serverName == null || serverName.equals("")) {
domainName = "";
} else {
serverName = serverName.toLowerCase();
serverName = serverName.substring(7);
final int end = serverName.indexOf("/");
serverName = serverName.substring(0, end);
if (serverName.indexOf(":") > 0) {
String[] ary = serverName.split("\\:");
serverName = ary[0];
}
final String[] domains = serverName.split("\\.");
int len = domains.length;
if (len > 3 && !isIp(serverName)) {
// www.xxx.com.cn
domainName = "." + domains[len - 3] + "." + domains[len - 2] + "." + domains[len - 1];
} else if (len <= 3 && len > 1) {
// xxx.com or xxx.cn
domainName = "." + domains[len - 2] + "." + domains[len - 1];
} else {
domainName = serverName;
}
}
return domainName;
}
public static String trimSpaces(String IP){//去掉IP字符串前后所有的空格
while(IP.startsWith(" ")){
IP= IP.substring(1,IP.length()).trim();
}
while(IP.endsWith(" ")){
IP= IP.substring(0,IP.length()-1).trim();
}
return IP;
}
public static boolean isIp(String IP){//判断是否是一个IP
boolean b = false;
IP = trimSpaces(IP);
if(IP.matches("\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}")){
String s[] = IP.split("\\.");
if(Integer.parseInt(s[0])<255)
if(Integer.parseInt(s[1])<255)
if(Integer.parseInt(s[2])<255)
if(Integer.parseInt(s[3])<255)
b = true;
}
return b;
}
}
DataUtils：
package com.ycx.spbootpro.utils;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class DataUtils<T> {
/**
* 转换方法，基于商品的排版情况（一行三列、一行四列等等）进行数据分行处理
* @param cols 一行显示几列
* @param goods 需要筛选的数据集
* @return
*/
public Map<String, List<T>> transfor(int cols, List<T> goods){
Map<String,List<T>> data=new HashMap<>();
List<T> rs=new ArrayList<>();
int len=goods.size();
for (int i = 0; i < len; i++) {
rs.add(goods.get(i));
if((i+1)%cols==0){
data.put("goods"+(i+1),rs);
if(i==len-1)
break;
rs=new ArrayList<>();
continue;
}
if(i==len-1){
data.put("goods"+(i+1),rs);
}
}
return data;
}
}
JsonResponseBody：
package com.ycx.spbootpro.utils;
import lombok.Data;
import java.io.Serializable;
/**
* 响应封装类
*/
@Data
public class JsonResponseBody<T> implements Serializable {
private String msg="OK";
private T data;
private Integer code;
private Integer total;
public JsonResponseBody(){
this.data=null;
this.code=JsonResponseStatus.SUCCESS.getCode();
}
public JsonResponseBody(T data){
this.data=data;
this.code=JsonResponseStatus.SUCCESS.getCode();
}
public JsonResponseBody(T data,Integer total){
this.data=data;
this.total=total;
this.code=JsonResponseStatus.SUCCESS.getCode();
}
public JsonResponseBody(JsonResponseStatus jsonResponseStatus){
this.msg=jsonResponseStatus.getMsg();
this.code=jsonResponseStatus.getCode();
}
public JsonResponseBody(JsonResponseStatus jsonResponseStatus,T data){
this.data=data;
this.msg=jsonResponseStatus.getMsg();
this.code=jsonResponseStatus.getCode();
}
}
JsonResponseStatus ：
package com.ycx.spbootpro.utils;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.ToString;
@Getter
@ToString
@AllArgsConstructor
public enum JsonResponseStatus {
SUCCESS(200,"OK"),
ERROR(500,"内部错误"),
USER_LOGIN_ERROR(100101,"用户名或者密码错误"),
USER_MOBILE_ERROR(100102,"手机号码格式错误"),
USER_PASSWORD_ERROR(100103,"用户密码错误"),
USER_USERNAME_ERROR(100104,"账号不存在"),
BIND_ERROR(200101,"参数校验异常"),
TOKEN_EEROR(200102,"token令牌失效或已过期")
;
private final Integer code;
private final String msg;
}
MD5Utils ：
package com.ycx.spbootpro.utils;
import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.stereotype.Component;
import java.util.UUID;
/**
* MD5加密
* 用户端：password=MD5(明文+固定Salt)
* 服务端：password=MD5(用户输入+随机Salt)
* 用户端MD5加密是为了防止用户密码在网络中明文传输，服务端MD5加密是为了提高密码安全性，双重保险。
*/
@Component
public class MD5Utils {
//加密盐，与前端一致
private static String salt="f1g2h3j4";
/**
* md5加密
* @param src
* @return
*/
public static String md5(String src){
return DigestUtils.md5Hex(src);
}
/**
* 获取加密的盐
* @return
*/
public static String createSalt(){
return UUID.randomUUID().toString().replace("-","");
}
/**
* 将前端的明文密码通过MD5加密方式加密成后端服务所需密码
* 注意：该步骤实际是在前端完成！！！
* @param inputPass 明文密码
* @return
*/
public static String inputPassToFormpass(String inputPass){
//混淆固定盐salt,安全性更可靠
String str=salt.charAt(1)+""+salt.charAt(5)+inputPass+salt.charAt(0)+""+salt.charAt(3);
return md5(str);
}
/**
* 将后端密文密码+随机salt生成数据库的密码
* @param formPass
* @param salt
* @return
*/
public static String formPassToDbPass(String formPass,String salt){
//混淆固定盐salt,安全性更可靠
String str=salt.charAt(7)+""+salt.charAt(9)+formPass+salt.charAt(1)+""+salt.charAt(5);
return md5(str);
}
/**
* 将用户输入的密码转换成数据库的密码
* @param inputPass 明文密码
* @param salt 盐
* @return
*/
public static String inputPassToDbPass(String inputPass,String salt){
String formPass = inputPassToFormpass(inputPass);
String dbPass = formPassToDbPass(formPass, salt);
return dbPass;
}
public static void main(String[] args) {
//d7aaa28e3b8e6c88352bd5e7c23829f9
//5512a78a188b318c074a15f9b056a712
String formPass = inputPassToFormpass("123456");
System.out.println("前端加密密码："+formPass);
String salt = createSalt();
System.out.println("后端加密随机盐："+salt);
String dbPass = formPassToDbPass(formPass, salt);
System.out.println("后端加密密码："+dbPass);
System.out.println("-------------------------------------------");
String dbPass1 = inputPassToDbPass("123456", salt);
System.out.println("最终加密密码："+dbPass1);
}
}
MybatisPlusConfig ：
package com.ycx.spbootpro.utils;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;
//Spring boot方式
@EnableTransactionManagement
@Configuration
@MapperScan("com.zking.shoppingpro.service.*.mapper*")
public class MybatisPlusConfig {
@Bean
public PaginationInterceptor paginationInterceptor() {
PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
// 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求 默认false
// paginationInterceptor.setOverflow(false);
// 设置最大单页限制数量，默认 500 条，-1 不受限制
// paginationInterceptor.setLimit(500);
// 开启 count 的 join 优化,只针对部分 left join
paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
return paginationInterceptor;
}
}
PageBean ：
package com.ycx.spbootpro.utils;
import javax.servlet.http.HttpServletRequest;
import java.io.Serializable;
import java.util.Map;
public class PageBean implements Serializable {
//页码
private int page=1;
//每页显示条数
private int rows=10;
//总记录数
private int total=0;
//是否分页标记
private boolean pagination=true;
//上一次请求的路径
private String url;
//请求参数Map集合
private Map<String,String[]> map;
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public Map<String, String[]> getMap() {
return map;
}
public void setMap(Map<String, String[]> map) {
this.map = map;
}
public int getPage() {
return page;
}
public void setPage(int page) {
this.page = page;
}
public int getRows() {
return rows;
}
public void setRows(int rows) {
this.rows = rows;
}
public int getTotal() {
return total;
}
public void setTotal(int total) {
this.total = total;
}
public boolean isPagination() {
return pagination;
}
public void setPagination(boolean pagination) {
this.pagination = pagination;
}
//重载setPage/setRows/setPagination方法
public void setPage(String page) {
if(null!=page&&!"".equals(page))
this.page=Integer.parseInt(page);
}
public void setRows(String rows) {
if(null!=rows&&!"".equals(rows))
this.rows=Integer.parseInt(rows);
}
public void setPagination(String pagination) {
if(null!=pagination&&!"".equals(pagination))
this.pagination=Boolean.parseBoolean(pagination);
}
public void setRequest(HttpServletRequest req) {
//获取前端提交的page/rows/pagination参数
String page=req.getParameter("page");
String rows=req.getParameter("rows");
String pagination=req.getParameter("pagination");
//设置属性
this.setPage(page);
this.setPagination(pagination);
this.setRows(rows);
//设置上一次请求的路径
//第一次请求：
//http://localhost:8080/项目名/请求路径.action?page=1
//第二次请求：下一页 page=2
//项目名+请求路径.action
//req.getContextPath()+req.getServletPath()==req.getRequestURI()
this.url=req.getRequestURI();
//获取请求参数集合
// checkbox name='hobby'
// Map<String,String[]> hobby==key value==new String[]{"篮球","足球",..}
this.map=req.getParameterMap();
}
/**
* 获取分页的起始位置
* @return
*/
public int getStartIndex() {
//第1页：(1-1)*10 ==0 limit 0,10
//第2页：(2-1)*10 ==10 limit 10,10
//..
return (this.page-1)*this.rows;
}
//获取末页、上一页、下一页
/**
* 获取末页
* @return
*/
public int getMaxPager() {
int maxPager=this.total/this.rows;
if(this.total%this.rows!=0)
maxPager++;
return maxPager;
}
/**
* 获取上一页
* @return
*/
public int getPreviousPager() {
int previousPager=this.page-1;
if(previousPager<=1)
previousPager=1;
return previousPager;
}
/**
* 获取下一页
* @return
*/
public int getNextPager() {
int nextPager=this.page+1;
if(nextPager>getMaxPager())
nextPager=getMaxPager();
return nextPager;
}
@Override
public String toString() {
return "PageBean [page=" + page + ", rows=" + rows + ", total=" + total + ", pagination=" + pagination
+ ", url=" + url + ", map=" + map + "]";
}
}
ValidatorUtils ：
package com.ycx.spbootpro.utils;
import org.apache.commons.lang3.StringUtils;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* 正则校验工具类
* @author 刘开宇
*/
public class ValidatorUtils {
private static final Pattern mobile_pattern=Pattern.compile("[1]([0-9])[0-9]{9}$");
public static boolean isMobile(String mobile){
if(StringUtils.isEmpty(mobile))
return false;
Matcher matcher = mobile_pattern.matcher(mobile);
return matcher.matches();
}
}
在generater类运行自动生成代码：
在控制台输入表名：
生成成功：
1）创建公共跳转控制器PageController
package com.ycx.spbootpro.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
/**
* @author 杨总
* @create 2022-11-05 17:20
*/
@Controller
public class PageController {
/**
* 直接跳转页面（没有层级文件夹的情况）
* 列如：
* http://localhost:8081/page/paint.html
* http://localhost:8081/page/perfume.html
*
* @return
*/
@RequestMapping("/page/{page}")
public String page(@PathVariable(value = "page") String page) {
return page;
}
/**
* 直接跳转页面（存在层级文件夹的情况）
*
* @return
*/
@RequestMapping("/page/{dir}/{page}")
public String dir(@PathVariable(value = "dir") String dir,
@PathVariable(value = "page") String page) {
return dir + "/" + page;
}
}2）使用Mybatis-plus反向生成代码(Goods商品信息)
package com.ycx.spbootpro.generator;
import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class CodeGenerator {
/**
* <p>
* 读取控制台内容
* </p>
*/
public static String scanner(String tip) {
Scanner scanner = new Scanner(System.in);
StringBuilder help = new StringBuilder();
help.append("请输入" + tip + "：");
System.out.println(help.toString());
if (scanner.hasNext()) {
String ipt = scanner.next();
if (StringUtils.isNotBlank(ipt)) {
return ipt;
}
}
throw new MybatisPlusException("请输入正确的" + tip + "！");
}
public static void main(String[] args) {
// 代码生成器
AutoGenerator mpg = new AutoGenerator();
// 全局配置
GlobalConfig gc = new GlobalConfig();
String projectPath = System.getProperty("user.dir") + "/spbootpro";
gc.setOutputDir(projectPath + "/src/main/java");
gc.setAuthor("yangzong");
gc.setOpen(false);
gc.setBaseColumnList(true);
gc.setBaseResultMap(true);
// gc.setSwagger2(true); 实体属性 Swagger2 注解
mpg.setGlobalConfig(gc);
// 数据源配置
DataSourceConfig dsc = new DataSourceConfig();
dsc.setUrl("jdbc:mysql://localhost:3306/spbootpro?useUnicode=true&useSSL=false&characterEncoding=utf8");
// dsc.setSchemaName("public");
dsc.setDriverName("com.mysql.jdbc.Driver");
dsc.setUsername("root");
dsc.setPassword("1234");
mpg.setDataSource(dsc);
// 包配置
PackageConfig pc = new PackageConfig();
//pc.setModuleName(scanner("模块名"));
pc.setParent("com.ycx.spbootpro");
//设置包名
pc.setEntity("model");
mpg.setPackageInfo(pc);
// 自定义配置
InjectionConfig cfg = new InjectionConfig() {
@Override
public void initMap() {
// to do nothing
}
};
// 如果模板引擎是 freemarker
String templatePath = "/templates/mybatis-generator/mapper2.xml.ftl";
// 如果模板引擎是 velocity
// String templatePath = "/templates/mapper.xml.vm";
// 自定义输出配置
List<FileOutConfig> focList = new ArrayList<>();
// 自定义配置会被优先输出
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输出文件名 ， 如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化！！
return projectPath + "/src/main/resources/mapper/" + pc.getModuleName()
+ "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
}
});
/*
cfg.setFileCreate(new IFileCreate() {
@Override
public boolean isCreate(ConfigBuilder configBuilder, FileType fileType, String filePath) {
// 判断自定义文件夹是否需要创建
checkDir("调用默认方法创建的目录，自定义目录用");
if (fileType == FileType.MAPPER) {
// 已经生成 mapper 文件判断存在，不想重新生成返回 false
return !new File(filePath).exists();
}
// 允许生成模板文件
return true;
}
});
*/
cfg.setFileOutConfigList(focList);
mpg.setCfg(cfg);
// 配置模板
TemplateConfig templateConfig = new TemplateConfig();
// 配置自定义输出模板
//指定自定义模板路径，注意不要带上.ftl/.vm, 会根据使用的模板引擎自动识别
templateConfig.setMapper("templates/mybatis-generator/mapper2.java");
templateConfig.setEntity("templates/mybatis-generator/entity2.java");
templateConfig.setService("templates/mybatis-generator/service2.java");
templateConfig.setServiceImpl("templates/mybatis-generator/serviceImpl2.java");
templateConfig.setController("templates/mybatis-generator/controller2.java");
templateConfig.setXml(null);
mpg.setTemplate(templateConfig);
// 策略配置
StrategyConfig strategy = new StrategyConfig();
strategy.setNaming(NamingStrategy.underline_to_camel);
strategy.setColumnNaming(NamingStrategy.underline_to_camel);
//strategy.setSuperEntityClass("你自己的父类实体,没有就不用设置!");
strategy.setEntityLombokModel(true);
strategy.setRestControllerStyle(true);
strategy.setEntitySerialVersionUID(false);
// 公共父类
//strategy.setSuperControllerClass("你自己的父类控制器,没有就不用设置!");
// 写于父类中的公共字段
strategy.setSuperEntityColumns("id");
strategy.setInclude(scanner("表名，多个英文逗号分割").split(","));
strategy.setControllerMappingHyphenStyle(true);
strategy.setTablePrefix("t_");
mpg.setStrategy(strategy);
mpg.setTemplateEngine(new FreemarkerTemplateEngine());
mpg.execute();
}
}
3）创建IndexController并定义商品查询请求处理方法
package com.ycx.spbootpro.controller;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.ycx.spbootpro.model.Goods;
import com.ycx.spbootpro.service.IGoodsService;
import com.ycx.spbootpro.utils.DataUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import java.util.List;
import java.util.Map;
/**
* @author 杨总
* @create 2022-11-04 21:02
*/
@Controller
public class IndexController {
@Autowired
private IGoodsService goodsService;
@RequestMapping("/")
public String index(Model model){
// 摆件花艺
List<Goods> goods01 = goodsService.list(new QueryWrapper<Goods>()
.eq("goods_type", "01")
.last("limit 6"));
// 壁挂北欧
List<Goods> goods07 = goodsService.list(new QueryWrapper<Goods>()
.eq("goods_type", "07")
.last("limit 12"));
// 为了方便首页数据显示，方便摆放
DataUtils<Goods> dataUtils = new DataUtils<>();
Map<String, List<Goods>> gt01 = dataUtils.transfor(3, goods01);
Map<String, List<Goods>> gt07 = dataUtils.transfor(4, goods07);
model.addAttribute("gt01",gt01);
model.addAttribute("gt07",gt07);
return "index.html";
}
}
首页数据绑定语法:
1) list集合判空
<#if goods07?? && goods07?size gt 0>2) 遍历map集合，获取所有的keys
<#list goods07?keys as key>3) 根据key获取对应value值goods01[key]
<#list goods07[key] as g>
index.html：
<!DOCTYPE html>
<html>
<head lang="en">
<#include "common/head.html" />
<link rel="stylesheet" type="text/css" href="css/public.css"/>
<link rel="stylesheet" type="text/css" href="css/index.css" />
</head>
<div>
<!------------------------------head------------------------------>
<#include "common/top.html" />
<!-------------------------banner--------------------------->
<div class="block_home_slider">
<div id="home_slider" class="flexslider">
<ul class="slides">
<li>
<div class="slide">
<img src="img/banner2.jpg"/>
</div>
</li>
<li>
<div class="slide">
<img src="img/banner1.jpg"/>
</div>
</li>
</ul>
</div>
</div>
<!------------------------------thImg------------------------------>
<div class="thImg">
<div class="clearfix">
<a href="${ctx}/page/vase_proList.html"><img src="img/i1.jpg"/></a>
<a href="${ctx}/page/proList.html"><img src="img/i2.jpg"/></a>
<a href="#2"><img src="img/i3.jpg"/></a>
</div>
</div>
<!------------------------------news------------------------------>
<div class="news">
<div class="wrapper">
<h2><img src="img/ih1.jpg"/></h2>
<div class="top clearfix">
<a href="${ctx}/page/proDetail.html"><img src="img/n1.jpg"/><p></p></a>
<a href="${ctx}/page/proDetail.html"><img src="img/n2.jpg"/><p></p></a>
<a href="${ctx}/page/proDetail.html"><img src="img/n3.jpg"/><p></p></a>
</div>
<div class="bott clearfix">
<a href="${ctx}/page/proDetail.html"><img src="img/n4.jpg"/><p></p></a>
<a href="${ctx}/page/proDetail.html"><img src="img/n5.jpg"/><p></p></a>
<a href="${ctx}/page/proDetail.html"><img src="img/n6.jpg"/><p></p></a>
</div>
<h2><img src="img/ih2.jpg"/></h2>
<#if gt01?? && gt01?size gt 0>
<!--遍历gt01中所有的key，是为了该key中的对象-->
<#list gt01?keys as key>
<div class="flower clearfix tran">
<#list gt01[key] as g>
<a href="proDetail.html" class="clearfix">
<dl>
<dt>
<span class="abl"></span>
<img src="${g.goodsImg}"/>
<span class="abr"></span>
</dt>
<dd>${g.goodsName}</dd>
<dd><span>￥ ${g.goodsPrice}</span></dd>
</dl>
</a>
</#list>
</div>
</#list>
</#if>
</div>
</div>
<!------------------------------ad------------------------------>
<a href="#" class="ad"><img src="img/ib1.jpg"/></a>
<!------------------------------people------------------------------>
<div class="people">
<div class="wrapper">
<h2><img src="img/ih3.jpg"/></h2>
<#if gt07?? && gt07?size gt 0>
<#list gt07?keys as key>
<div class="pList clearfix tran">
<#list gt07[key] as g>
<a href="proDetail.html">
<dl>
<dt>
<span class="abl"></span>
<img src="${g.goodsImg}"/>
<span class="abr"></span>
</dt>
<dd>${g.goodsName}</dd>
<dd><span>￥ ${g.goodsPrice}</span></dd>
</dl>
</a>
</#list>
</div>
</#list>
</#if>>
</div>
</div>
<#include "common/footer.html"/>
<script src="js/public.js" type="text/javascript" charset="utf-8"></script>
<script src="js/nav.js" type="text/javascript" charset="utf-8"></script>
<script src="js/jquery.flexslider-min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(function() {
$('#home_slider').flexslider({
animation: 'slide',
controlNav: true,
directionNav: true,
animationLoop: true,
slideshow: true,
slideshowSpeed:2000,
useCSS: false
});
});
</script>
</body>
</html>
运行：
四、用户明文登录
创建UserController类实现用户登录
1.1）构建UserDto，定义mobile和password属性
定义UserDto.java接受前台传递的参数：
package com.ycx.spbootpro.model.dto;
import com.ycx.spbootpro.validator.IsMobile;
import lombok.Data;
import javax.validation.constraints.NotBlank;
@Data
public class UserDto {
@NotBlank(message = "手机号码不能为空！")
@IsMobile
private String mobile;
@NotBlank(message = "密码不能为空！")
private String password;
}
1.2）创建UserController类
处理浏览器端的请求 UserController.java
package com.ycx.spbootpro.controller;
import com.ycx.spbootpro.model.dto.UserDto;
import com.ycx.spbootpro.service.IUserService;
import com.ycx.spbootpro.utils.JsonResponseBody;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.validation.Valid;
/**
* <p>
* 用户信息表 前端控制器
* </p>
*
* @author yangzong
* @since 2022-11-05
*/
@RestController
@RequestMapping("/user")
public class UserController {
@Autowired
private IUserService userService;
@RequestMapping("/toLogin")
public JsonResponseBody toLogin(@Valid UserDto userDto,
HttpServletRequest req,
HttpServletResponse resp){
return userService.toLogin(userDto,req,resp);
}
}
1.3）定义userLogin(UserDto userDto,HttpServletRequest req,HttpServletResponse resp)
1.4）定义响应封装类JsonResponseBody和JsonResponseStatus
1.5）在IUserService中定义userLogin(UserVo userVo)，并返回JsonResponseBody
1.5.1）判断mobile和password是否为空
1.5.2）判断mobile格式是否正确
1.5.3）根据用户手机号码查询用户是否存在
1.5.4）校验账号
1.5.5）校验密码
package com.ycx.spbootpro.service.impl;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.ycx.spbootpro.exception.BusinessException;
import com.ycx.spbootpro.model.User;
import com.ycx.spbootpro.mapper.UserMapper;
import com.ycx.spbootpro.model.dto.UserDto;
import com.ycx.spbootpro.service.IUserService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ycx.spbootpro.utils.JsonResponseBody;
import com.ycx.spbootpro.utils.JsonResponseStatus;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.validation.Valid;
/**
* <p>
* 用户信息表 服务实现类
* </p>
*
* @author yangzong
* @since 2022-11-05
*/
@Service
public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements IUserService {
@Autowired
private UserMapper userMapper;
@Override
public JsonResponseBody toLogin(UserDto userDto, HttpServletRequest req, HttpServletResponse resp) {
// 1.5.1）判断mobile和password是否为空(已由JSP303完成）
// 1.5.2）判断mobile格式是否正确（自定义验证注解）
// 1.5.3）根据用户手机号码查询用户是否存在
User user = userMapper.selectOne(new QueryWrapper<User>()
.eq("id", userDto.getMobile()));
//1.5.4）校验账号
//判断用户对象是否存在
if(null==user)
throw new BusinessException(JsonResponseStatus.USER_USERNAME_ERROR);
// 1.5.5）校验密码
if(!user.getPassword().equals(userDto.getPassword()))
throw new BusinessException(JsonResponseStatus.USER_PASSWORD_ERROR);
return new JsonResponseBody<>();
}
}
1.6）全局异常处理
1.6.1）创建BusinessException
1.6.2）创建GlobalExceptionHandler
1.6.3）修改userLogin中的异常处理方式
1.7）自定义注解参数校验（JSR303）
1.7.1）创建自定义注解IsMobile
1.7.2）创建自定义校验规则类MobileValidator
1.7.3）在UserVo类的mobile属性中使用IsMobile注解
自定义JSR303注解，完成服务端登录账号的验证
查看用户表数据
login.js:
$(function () {
alert(2);
//登录向后台发送Ajax请求
$("#login").click(function () {
let mobile = $("#mobile").val();
let password = $("#password").val();
$.post("/user/toLogin",{
mobile:mobile,
password:password
},function (res) {
alert(res.msg)
},"json");
})
});测试多种情况:
1.手机号为空
2.手机号为非法字符
3.密码为空
4.手机号不存在
5.手机号密码正确
6.密码错误
五、前端及数据库密码加密
前端加密：防止客户端浏览器F12导致密码泄露
后端加密：防止数据库数据泄露导致密码泄露
运行：
把 后端加密随机盐 和 加密密码 复制进表数据：
再次运行，每次运行出来的密码都不一样：
记得在login.html导入：
UserServiceImpl.java变更如下
package com.ycx.spbootpro.service.impl;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.ycx.spbootpro.exception.BusinessException;
import com.ycx.spbootpro.model.User;
import com.ycx.spbootpro.mapper.UserMapper;
import com.ycx.spbootpro.model.dto.UserDto;
import com.ycx.spbootpro.service.IUserService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ycx.spbootpro.utils.JsonResponseBody;
import com.ycx.spbootpro.utils.JsonResponseStatus;
import com.ycx.spbootpro.utils.MD5Utils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.validation.Valid;
/**
* <p>
* 用户信息表 服务实现类
* </p>
*
* @author yangzong
* @since 2022-11-05
*/
@Service
public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements IUserService {
@Autowired
private UserMapper userMapper;
@Override
public JsonResponseBody toLogin(UserDto userDto, HttpServletRequest req, HttpServletResponse resp) {
// 1.5.1）判断mobile和password是否为空(已由JSP303完成）
// 1.5.2）判断mobile格式是否正确（自定义验证注解）
// 1.5.3）根据用户手机号码查询用户是否存在
User user = userMapper.selectOne(new QueryWrapper<User>()
.eq("id", userDto.getMobile()));
//1.5.4）校验账号
//判断用户对象是否存在
if(null==user)
throw new BusinessException(JsonResponseStatus.USER_USERNAME_ERROR);
// 前台传递到后台的密码要经过工具类md5加密一次才有可能跟数据库密码匹配上
String pwd = MD5Utils.formPassToDbPass(userDto.getPassword(), user.getSalt());
// 1.5.5）校验密码
if(!pwd.equals(user.getPassword()))
throw new BusinessException(JsonResponseStatus.USER_PASSWORD_ERROR);
return new JsonResponseBody<>();
}
}
login.js变更如下
$(function () {
alert(2);
//登录向后台发送Ajax请求
$("#login").click(function () {
let mobile = $("#mobile").val();
let password = $("#password").val();
//1.密码加密
//1) 定义固定盐
let salt='f1g2h3j4';
//2) 固定盐混淆
let temp=salt.charAt(1)+""+salt.charAt(5)+password+salt.charAt(0)+""+salt.charAt(3);
//3) 使用MD5完成前端第一次加密
let pwd=md5(temp);
$.post("/user/toLogin",{
mobile:mobile,
password:pwd
},function (res) {
alert(res.msg)
},"json");
})
});再次运行：
六、服务端客户端登录密码管理
将登录的用户数据分别保留在客户端以及服务端
UserServiceImpl.java变更如下
package com.ycx.spbootpro.service.impl;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.ycx.spbootpro.exception.BusinessException;
import com.ycx.spbootpro.model.User;
import com.ycx.spbootpro.mapper.UserMapper;
import com.ycx.spbootpro.model.dto.UserDto;
import com.ycx.spbootpro.service.IRedisService;
import com.ycx.spbootpro.service.IUserService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ycx.spbootpro.utils.CookieUtils;
import com.ycx.spbootpro.utils.JsonResponseBody;
import com.ycx.spbootpro.utils.JsonResponseStatus;
import com.ycx.spbootpro.utils.MD5Utils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.validation.Valid;
import java.util.UUID;
/**
* <p>
* 用户信息表 服务实现类
* </p>
*
* @author yangzong
* @since 2022-11-05
*/
@Service
public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements IUserService {
@Autowired
private UserMapper userMapper;
@Autowired
private IRedisService redisService;
@Override
public JsonResponseBody toLogin(UserDto userDto, HttpServletRequest req, HttpServletResponse resp) {
// 1.5.1）判断mobile和password是否为空(已由JSP303完成）
// 1.5.2）判断mobile格式是否正确（自定义验证注解）
// 1.5.3）根据用户手机号码查询用户是否存在
User user = userMapper.selectOne(new QueryWrapper<User>()
.eq("id", userDto.getMobile()));
//1.5.4）校验账号
//判断用户对象是否存在
if(null==user)
throw new BusinessException(JsonResponseStatus.USER_USERNAME_ERROR);
// 前台传递到后台的密码要经过工具类md5加密一次才有可能跟数据库密码匹配上
String pwd = MD5Utils.formPassToDbPass(userDto.getPassword(), user.getSalt());
// 1.5.5）校验密码
if(!pwd.equals(user.getPassword()))
throw new BusinessException(JsonResponseStatus.USER_PASSWORD_ERROR);
//6.将登陆用户对象与token令牌进行绑定保存到cookie和redis
//创建登陆令牌token
String token= UUID.randomUUID().toString().replace("-","");
//将token令牌保存到cookie中
CookieUtils.setCookie(req,resp,"token",token,7200);
//将登陆token令牌与用户对象user绑定到redis中
redisService.setUserToRedis(token,user);
//将用户登陆的昵称设置到cookie中
CookieUtils.setCookie(req,resp,"nickname",user.getNickname());
return new JsonResponseBody<>();
}
}
IRedisService.java:
package com.ycx.spbootpro.service;
import com.ycx.spbootpro.model.User;
/**
* @author 杨总
* @create 2022-11-05 20:45
*/
public interface IRedisService {
void setUserToRedis(String token, User user) ;
User getUserByToken(String token);
}
RedisServiceImpl.java:
package com.ycx.spbootpro.service.impl;
import com.ycx.spbootpro.model.User;
import com.ycx.spbootpro.service.IRedisService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import java.util.concurrent.TimeUnit;
/**
* @author 杨总
* @create 2022-11-05 20:49
*/
@Service
public class RedisServiceImpl implements IRedisService {
@Autowired
private RedisTemplate<String,Object> redisTemplate;
@Override
public void setUserToRedis(String token, User user) {
redisTemplate.opsForValue().set("user:"+token,user,7200L, TimeUnit.SECONDS);
}
@Override
public User getUserByToken(String token) {
return (User) redisTemplate.opsForValue().get("user:"+token);
}
}
测试如下：
今日内容就到这里啦~再会！