1、添加依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId></dependency><dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt</artifactId> <version>0.9.1</version></dependency>
2、集成JWT工具类(JwtUtils)
package com.dreamteam.chdapp.utils;import io.jsonwebtoken.Jwts;import io.jsonwebtoken.SignatureAlgorithm;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import javax.servlet.http.HttpServletRequest;import java.util.Date;import java.util.HashMap;import java.util.Map;/** * @Author HeYunHui * @create 2020/11/15 14:12 */public class JwtUtils { private static final Logger logger= LoggerFactory.getLogger(JwtUtils.class); public static final long EXPIRATION_TIME=60*60*1000;// 令牌环有效期 public static final String SECRET="abc123456def";//令牌环密钥 public static final String TOKEN_PREFIX="Bearer";//令牌环头标识 public static final String HEADER_STRING="Passport";//配置令牌环在http heads中的键值 public static final String ROLE="ROLE";//自定义字段-角色字段 //生成令牌环 public static String generateToken(String userRole,String userid){ HashMap<String,Object> map=new HashMap<>(); map.put(ROLE,userRole); map.put("userid",userid); String jwt= Jwts.builder() .setClaims(map) .setExpiration(new Date(System.currentTimeMillis()+EXPIRATION_TIME)) .signWith(SignatureAlgorithm.HS512,SECRET) .compact(); return TOKEN_PREFIX+" "+jwt; } //生成令牌环 public static String generateToken(String userRole,String userid,long exprationtime){ HashMap<String,Object> map=new HashMap<>(); map.put(ROLE,userRole); map.put("userid",userid); String jwt= Jwts.builder() .setClaims(map) .setExpiration(new Date(System.currentTimeMillis()+exprationtime)) .signWith(SignatureAlgorithm.HS512,SECRET) .compact(); return TOKEN_PREFIX+" "+jwt; } //令牌环校验 public static Map<String,Object> validateTokenAndGetClaims(HttpServletRequest request){ String token=request.getHeader(HEADER_STRING); if(token==null){ throw new TokenValidationException("Missing Token"); } else{ Map<String,Object> body= Jwts.parser() .setSigningKey(SECRET) .parseClaimsJws(token.replace(TOKEN_PREFIX,"")) .getBody(); return body; } } static class TokenValidationException extends RuntimeException{ public TokenValidationException(String msg){ super(msg); } }}
3、集成JWT filter(拦截器/过滤器)
package com.dreamteam.chdapp.filter;import com.dreamteam.chdapp.utils.JwtUtils;import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;import org.springframework.security.core.context.SecurityContextHolder;import org.springframework.util.AntPathMatcher;import org.springframework.util.PathMatcher;import org.springframework.web.filter.OncePerRequestFilter;import javax.servlet.FilterChain;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.util.Arrays;import java.util.Map;import static com.dreamteam.chdapp.utils.JwtUtils.ROLE;/** * @Author HeYunHui * @create 2020/11/15 14:46 */public class JwtAuthenticationFilter extends OncePerRequestFilter { private static final PathMatcher pathmatcher = new AntPathMatcher(); private String[] protectUrlPattern = {"/manage/**", "/member/**", "/auth/**"}; //哪 些请求需要进行安全校验 public JwtAuthenticationFilter() { } @Override protected void doFilterInternal(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, FilterChain filterChain) throws ServletException, IOException {//是不是可以在这里做多种方式登录呢 try { if (isProtectedUrl(httpServletRequest)) { Map<String, Object> claims = JwtUtils.validateTokenAndGetClaims(httpServletRequest); String role = String.valueOf(claims.get(ROLE)); String userid = String.valueOf(claims.get("userid")); //最关键的部分就是这里, 我们直接注入了 SecurityContextHolder.getContext().setAuthentication(new UsernamePasswordAuthenticationToken( userid, null, Arrays.asList(() -> role) )); } } catch (Exception e) { e.printStackTrace(); httpServletResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED, e.getMessage()); return; } filterChain.doFilter(httpServletRequest, httpServletResponse); } //是否是保护连接 private boolean isProtectedUrl(HttpServletRequest request) { boolean flag = false; for (int i = 0; i < protectUrlPattern.length; i++) { if (pathmatcher.match(protectUrlPattern[i], request.getServletPath())) { return true; } } return false; }}
4、配置JWT config类(配置类)
跨域访问：客户端与服务端域名不同或是端口号不同。防止跨域攻击
package edu.ynmd.cms.config;import edu.ynmd.cms.filter.JwtAuthenticationFilter;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;import org.springframework.security.config.annotation.web.builders.HttpSecurity;import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;import org.springframework.security.config.http.SessionCreationPolicy;import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;import org.springframework.security.crypto.password.PasswordEncoder;import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;import org.springframework.security.web.firewall.HttpFirewall;import org.springframework.security.web.firewall.StrictHttpFirewall;@Configuration@EnableWebSecurity@EnableGlobalMethodSecurity(prePostEnabled = true)public class WebSecurityConfig extends WebSecurityConfigurerAdapter { @Bean public PasswordEncoder passwordEncoder(){ return new BCryptPasswordEncoder(); } @Bean public HttpFirewall allowUrlEncodedSlashHttpFirewall() { StrictHttpFirewall firewall = new StrictHttpFirewall(); firewall.setAllowUrlEncodedSlash(true); return firewall; } @Override protected void configure(HttpSecurity http) throws Exception { http.csrf().disable() .cors() //允许跨域访问 .and() .authorizeRequests() .antMatchers("/").authenticated() //配置那些url需要进行校验--所有请求都需要校验"/" .antMatchers("/public/**").permitAll() //那些请求不需要校验 .anyRequest().authenticated() //自定义校验类 .and() .addFilterBefore(new JwtAuthenticationFilter(), UsernamePasswordAuthenticationFilter.class) .sessionManagement() .sessionCreationPolicy(SessionCreationPolicy.STATELESS)//关闭session ; }}
5、Action注解
在Controller类中添加
@CrossOrigin@RestController@PreAuthorize("hasAuthority('admin')") //配置角色，拥有该角色的用户方可访问@RequestMapping("/manage")
postman测试http://localhost:7070/manage/userList，不可访问
public开头的可以访问
6、token令牌环，访问需校验的资源
public的Controller类添加
@PostMapping("/login") @ResponseBody public HashMap<String,String> login( @RequestBody Account account) throws IOException {// Users u=manageService.getUserByUserNameAndPass(account.username,account.password); if(account.username.equals("admin")&&account.password.equals("123456")){// if(u!=null){ String jwt= JwtUtils.generateToken("admin","123456789abc");// String jwt= JwtUtils.generateToken(u.getRoleid(),u.getUsersid()); return new HashMap<String,String>(){{ put("msg","ok"); put("token",jwt);// put("role",u.getRoleid()); put("role","admin"); }}; } else { //return new ResponseEntity(HttpStatus.UNAUTHORIZED); return new HashMap<String,String>(){{ put("msg","error"); put("token","error"); }}; } } public static class Account{ public String username; public String password; }
postman测试，随便输用户名密码
输入代码中的用户名密码
去JWT官网https://jwt.io/，页面下滑，将得到的token输入，得到
manage的Controller类中添加测试
@GetMapping("testSecurityResource") @ResponseBody public String testSecurityResource() throws Exception{ return "受保护的资源"; }
用postman访问http://localhost:7070/manage/testSecurityResource，返回结果
7、service工具类
通用请求处理
package com.dreamteam.chdapp.controller.common;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.stereotype.Controller;/** * 通用请求处理 * @Author HeYunHui * @create 2020/11/14 15:38 */@Controllerpublic class CommonController { protected static final Logger log= LoggerFactory.getLogger(CommonController.class); /** * 字符串为空 * @param value * @return */ public static boolean isNullOrSpace(String value){ if(value==null){ return true; } else { if(value.equals("")){ return true; } else { return false; } } }}
Service层
String getCurrentUserId();//从令牌环中获取useridString getCurrentRole();//从令牌环中获取角色id
ServiceImpl
/** * 获取当前登录用的的Id * @return */ @Override public String getCurrentUserId() { String userid= (String) SecurityContextHolder.getContext().getAuthentication() .getPrincipal(); if(CommonController.isNullOrSpace(userid)){ return null; } else { return userid; } } /** * 获取当前登录用户的角色 * @return */ @Override public String getCurrentRole() { String role=null; Collection<SimpleGrantedAuthority> authorities = (Collection<SimpleGrantedAuthority>) SecurityContextHolder.getContext().getAuthentication().getAuthorities(); for (GrantedAuthority authority : authorities) { role = authority.getAuthority(); } if(CommonController.isNullOrSpace(role)){ return null; } else{ return role; } }
修改manage的Controller类
@GetMapping("testSecurityResource") @ResponseBody public String testSecurityResource() throws Exception{ String userid=userInfoService.getCurrentUserId(); String role=userInfoService.getCurrentRole(); return "受保护的资源,当前用户的id是"+userid+"当前用户的角色是"+role; }
用postman测试
这是前面自定义的
8、识别token信息
如果将下图中的角色换掉，将不能访问
9、自动更新令牌环
添加Controller类
package com.dreamteam.chdapp.controller;import com.dreamteam.chdapp.controller.common.CommonController;import com.dreamteam.chdapp.utils.JwtUtils;import org.springframework.security.access.prepost.PreAuthorize;import org.springframework.security.core.GrantedAuthority;import org.springframework.security.core.authority.SimpleGrantedAuthority;import org.springframework.security.core.context.SecurityContextHolder;import org.springframework.web.bind.annotation.*;import javax.servlet.http.HttpServletRequest;import java.util.Collection;import java.util.HashMap;/** * 令牌环自动更新 * @Author HeYunHui * @create 2020/11/16 17:24 * @PreAuthorize("hasAuthority('admin')")//只允许有admin角色的用户访问 hasAnyAuthority([auth1,auth2]) */@CrossOrigin@RestController@PreAuthorize("hasAnyAuthority('admin','member')")@RequestMapping("/auth")public class AuthController { /** * 更新令牌环信息 * @param request * @return */ @GetMapping("refreshToken") @ResponseBody public HashMap<String,String> refreshToken(HttpServletRequest request){ String role=null; Collection<SimpleGrantedAuthority> authorities = (Collection<SimpleGrantedAuthority>) SecurityContextHolder.getContext().getAuthentication().getAuthorities(); for (GrantedAuthority authority : authorities) { role = authority.getAuthority(); } // UserDetails userDetails = (UserDetails) SecurityContextHolder.getContext().getAuthentication() .getPrincipal(); String userid= (String)SecurityContextHolder.getContext().getAuthentication() .getPrincipal(); if(CommonController.isNullOrSpace(role)){ return new HashMap<String,String>(){{ put("token","error"); }}; } else{ String jwt=""; //一小时 jwt= JwtUtils.generateToken(role,userid,60*60*1000); HashMap<String,String> m=new HashMap<>(); m.put("token",jwt); return m; } } /** * 获取当前登录用户的角色 * @return */ @GetMapping("getRole") @ResponseBody public HashMap<String,String> getRoleByToken(){ String role=""; String userid=""; Collection<SimpleGrantedAuthority> authorities = (Collection<SimpleGrantedAuthority>) SecurityContextHolder.getContext().getAuthentication().getAuthorities(); for (GrantedAuthority authority : authorities) { role = authority.getAuthority(); } if(CommonController.isNullOrSpace(role)){ return new HashMap<String,String>(){{ put("role","error"); }}; } else{ HashMap<String,String> m=new HashMap<>(); m.put("role",role); return m; } }}
用postman测试
10、使用数据库存储用户信息
（1）实体类
package com.dreamteam.chdapp.entity;import com.baomidou.mybatisplus.annotation.IdType;import com.baomidou.mybatisplus.annotation.TableId;import com.baomidou.mybatisplus.annotation.TableName;import lombok.AllArgsConstructor;import lombok.Data;import lombok.NoArgsConstructor;import org.springframework.stereotype.Component;@Component@Data@AllArgsConstructor@NoArgsConstructor/** * 表名 */@TableName("users")public class Users { @TableId(type = IdType.AUTO) private String usrId; private String usrName; private String usrTel; private String usrPwd; private String usrType; }
UserMapper
package com.dreamteam.chdapp.mapper;import com.baomidou.mybatisplus.core.mapper.BaseMapper;import com.dreamteam.chdapp.entity.Users;import org.apache.ibatis.annotations.Mapper;import org.apache.ibatis.annotations.Param;import org.springframework.stereotype.Repository;import java.util.List;/** * @Author HeYunHui * @create 2020/11/11 21:50 */@Repository@Mapperpublic interface UserMapper extends BaseMapper<Users> { List<Users> getUsersByUsrNameAndPwd(@Param("usrName")String usrName, @Param("usrPwd") String usrPwd);}
UsersMapper.xml
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.dreamteam.chdapp.mapper.UserMapper"> <select id="getUsersByUsrNameAndPwd" resultType="com.dreamteam.chdapp.entity.Users"> select * from users where #{usrName}=usr_name and #{usrPwd}=usr_pwd </select></mapper>
service
Users getUsersByUsrNameAndPwd(String usrName,String usrPwd);
serviceImpl JWT获取用户名密码
@Override public Users getUsersByUsrNameAndPwd(String usrName, String usrPwd) { List<Users> ul=userMapper.getUsersByUsrNameAndPwd(usrName,usrPwd); if(ul.size()>0){ return ul.get(0); } return null; }
Controller
@PostMapping("/login") @ResponseBody public HashMap<String,String> login( @RequestBody Account account) throws IOException { Users u=userInfoService.getUsersByUsrNameAndPwd(account.username,account.password);// if(account.username.equals("admin")&&account.password.equals("123456")){ if(u!=null){// String jwt= JwtUtils.generateToken("admin","123456789abc"); String jwt= JwtUtils.generateToken(u.getUsrType(),u.getUsrId()); return new HashMap<String,String>(){{ put("msg","ok"); put("token",jwt); put("role",u.getUsrType());// put("role","admin"); }}; } else { //return new ResponseEntity(HttpStatus.UNAUTHORIZED); return new HashMap<String,String>(){{ put("msg","error"); put("token","error"); }}; } } public static class Account{ public String username; public String password; }
postman测试
a.登录，生成token
b.输入token访问manage下的链接
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