目录
1、环境搭建
1.1maven项目
1.2导入依赖
2.测试环境
3.实现安全认证
3.1原理
3.1.1实现UserDetailsService接口默认是从内存中获取密码，我们需要从数据库中来比对用户信息
3.2返回自定义结果集
3.3自定义实现类实现UserDetailsService接口
5.jwt的使用
5.1权限的验证
6，自定义认证异常和授权异常处理
7.配置跨域请求
1、环境搭建
1.1maven项目
1.2导入依赖
org.springframework.boot
spring-boot-starter-parent
2.5.0
org.springframework.boot
spring-boot-starter-security
org.springframework.boot
spring-boot-starter-web
org.projectlombok
lombok
1.16.22
2.测试环境
@RestController
public class HelloController {
@RequestMapping("/hello")
public String hello(){
return "hello";
}
}
3.实现安全认证
3.1原理
org.springframework.boot spring-boot-starter-parent2.5.0 org.springframework.boot spring-boot-starter-securityorg.springframework.boot spring-boot-starter-weborg.projectlombok lombok1.16.22
2.测试环境
@RestController
public class HelloController {
@RequestMapping("/hello")
public String hello(){
return "hello";
}
}
3.实现安全认证
3.1原理
3.1原理
3.1.1实现UserDetailsService接口默认是从内存中获取密码，我们需要从数据库中来比对用户信息
3.2返回自定义结果集
ResponseResult.class
package com.yrh.domain;
import com.fasterxml.jackson.annotation.JsonInclude;
@JsonInclude(JsonInclude.Include.NON_NULL)
public class ResponseResult {
private Integer code;
private String msg;
private T data;
public ResponseResult(Integer code, String msg) {
this.code = code;
this.msg = msg;
}
public ResponseResult(Integer code, T data) {
this.code = code;
this.data = data;
}
public Integer getCode() {
return code;
}
public void setCode(Integer code) {
this.code = code;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public T getData() {
return data;
}
public void setData(T data) {
this.data = data;
}
public ResponseResult(Integer code, String msg, T data) {
this.code = code;
this.msg = msg;
this.data = data;
}
}
ResponseResult.class
package com.yrh.domain; import com.fasterxml.jackson.annotation.JsonInclude; @JsonInclude(JsonInclude.Include.NON_NULL) public class ResponseResult{ private Integer code; private String msg; private T data; public ResponseResult(Integer code, String msg) { this.code = code; this.msg = msg; } public ResponseResult(Integer code, T data) { this.code = code; this.data = data; } public Integer getCode() { return code; } public void setCode(Integer code) { this.code = code; } public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } public T getData() { return data; } public void setData(T data) { this.data = data; } public ResponseResult(Integer code, String msg, T data) { this.code = code; this.msg = msg; this.data = data; } }
数据库对应的实体类
用户信息
User.class
package com.yrh.domain;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
import java.util.Date;
@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("sys_user")
public class User implements Serializable {
private static final long serialVersionUID = -40356785423868312L;
@TableId
private Long id;
private String userName;
private String nickName;
private String password;
private String status;
private String email;
private String phonenumber;
private String sex;
private String avatar;
private String userType;
private Long createBy;
private Date createTime;
private Long updateBy;
private Date updateTime;
private Integer delFlag;
}
菜单权限列表
package com.yrh.domain;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import com.fasterxml.jackson.annotation.JsonInclude;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
import java.util.Date;
@TableName(value="sys_menu")
@Data
@AllArgsConstructor
@NoArgsConstructor
@JsonInclude(JsonInclude.Include.NON_NULL)
public class Menu implements Serializable {
private static final long serialVersionUID = -54979041104113736L;
@TableId
private Long id;
private String menuName;
private String path;
private String component;
private String visible;
private String status;
private String perms;
private String icon;
private Long createBy;
private Date createTime;
private Long updateBy;
private Date updateTime;
private Integer delFlag;
private String remark;
}
数据库sql
DROP TABLE IF EXISTS `sys_menu`; CREATE TABLE `sys_menu` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `menu_name` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL DEFAULT 'NULL' COMMENT '菜单名', `path` varchar(200) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '路由地址', `component` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '组件路径', `visible` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT '0' COMMENT '菜单状态（0显示 1隐藏）', `status` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT '0' COMMENT '菜单状态（0正常 1停用）', `perms` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '权限标识', `icon` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT '#' COMMENT '菜单图标', `create_by` bigint(20) NULL DEFAULT NULL, `create_time` datetime NULL DEFAULT NULL, `update_by` bigint(20) NULL DEFAULT NULL, `update_time` datetime NULL DEFAULT NULL, `del_flag` int(11) NULL DEFAULT 0 COMMENT '是否删除（0未删除 1已删除）', `remark` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '备注', PRIMARY KEY (`id`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '菜单表' ROW_FORMAT = Dynamic; -- ---------------------------- -- Records of sys_menu -- ---------------------------- INSERT INTO `sys_menu` VALUES (1, '部门管理', 'dept', 'system/dept/index', '0', '0', 'system:dept:list', '#', NULL, NULL, NULL, NULL, 0, NULL); INSERT INTO `sys_menu` VALUES (2, '测试', 'test', 'system/test/index', '0', '0', 'system:test:list', '#', NULL, NULL, NULL, NULL, 0, NULL); -- ---------------------------- -- Table structure for sys_role -- ---------------------------- DROP TABLE IF EXISTS `sys_role`; CREATE TABLE `sys_role` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `name` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL, `role_key` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '角色权限字符串', `status` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT '0' COMMENT '角色状态（0正常 1停用）', `del_flag` int(1) NULL DEFAULT 0 COMMENT 'del_flag', `create_by` bigint(200) NULL DEFAULT NULL, `create_time` datetime NULL DEFAULT NULL, `update_by` bigint(200) NULL DEFAULT NULL, `update_time` datetime NULL DEFAULT NULL, `remark` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '备注', PRIMARY KEY (`id`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '角色表' ROW_FORMAT = Dynamic; -- ---------------------------- -- Records of sys_role -- ---------------------------- INSERT INTO `sys_role` VALUES (1, 'CEO', 'ceo', '0', 0, NULL, NULL, NULL, NULL, NULL); -- ---------------------------- -- Table structure for sys_role_menu -- ---------------------------- DROP TABLE IF EXISTS `sys_role_menu`; CREATE TABLE `sys_role_menu` ( `role_id` bigint(200) NOT NULL AUTO_INCREMENT COMMENT '角色ID', `menu_id` bigint(200) NOT NULL DEFAULT 0 COMMENT '菜单id', PRIMARY KEY (`role_id`, `menu_id`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic; -- ---------------------------- -- Records of sys_role_menu -- ---------------------------- INSERT INTO `sys_role_menu` VALUES (1, 1); INSERT INTO `sys_role_menu` VALUES (1, 2); -- ---------------------------- -- Table structure for sys_user -- ---------------------------- DROP TABLE IF EXISTS `sys_user`; CREATE TABLE `sys_user` ( `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键', `user_name` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL DEFAULT 'NULL' COMMENT '用户名', `nick_name` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL DEFAULT 'NULL' COMMENT '昵称', `password` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL DEFAULT 'NULL' COMMENT '密码', `status` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT '0' COMMENT '账号状态（0正常 1停用）', `email` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '邮箱', `phonenumber` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '手机号', `sex` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '用户性别（0男，1女，2未知）', `avatar` varchar(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '头像', `user_type` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL DEFAULT '1' COMMENT '用户类型（0管理员，1普通用户）', `create_by` bigint(20) NULL DEFAULT NULL COMMENT '创建人的用户id', `create_time` datetime NULL DEFAULT NULL COMMENT '创建时间', `update_by` bigint(20) NULL DEFAULT NULL COMMENT '更新人', `update_time` datetime NULL DEFAULT NULL COMMENT '更新时间', `del_flag` int(11) NULL DEFAULT 0 COMMENT '删除标志（0代表未删除，1代表已删除）', PRIMARY KEY (`id`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '用户表' ROW_FORMAT = Dynamic; -- ---------------------------- -- Records of sys_user -- ---------------------------- INSERT INTO `sys_user` VALUES (1, 'zs', '张三', '$2a$10$C47dbXc.KlJyJq4Br50Mv.ujscDQmPqOcoXQc8khU70XZSsYv5j1G', '0', NULL, NULL, NULL, NULL, '1', NULL, NULL, NULL, NULL, 0); -- ---------------------------- -- Table structure for sys_user_role -- ---------------------------- DROP TABLE IF EXISTS `sys_user_role`; CREATE TABLE `sys_user_role` ( `user_id` bigint(200) NOT NULL AUTO_INCREMENT COMMENT '用户id', `role_id` bigint(200) NOT NULL DEFAULT 0 COMMENT '角色id', PRIMARY KEY (`user_id`, `role_id`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic; -- ---------------------------- -- Records of sys_user_role -- ---------------------------- INSERT INTO `sys_user_role` VALUES (1, 1);
3.3自定义实现类实现UserDetailsService接口
步骤
- 实现loadUserByUsername方法通过用户名获取用户信息通过用户id获取用户权限信息返回UserDetails对象导入依赖
导入依赖
com.baomidou mybatis-plus-boot-starter3.4.3 mysql mysql-connector-javaorg.springframework.boot spring-boot-starter-test
application.yml
spring:
datasource:
url: jdbc:mysql://localhost:3306/security?characterEncoding=utf-8&serverTimezone=UTC
username: root
password: root
driver-class-name: com.mysql.cj.jdbc.Driver
server:
port: 8888
mapper
UserMapper用户数据层接口
package com.yrh.mapper; import com.baomidou.mybatisplus.core.mapper.baseMapper; import com.yrh.domain.User; public interface UserMapper extends baseMapper{ }
MenuMapper权限列表接口
package com.yrh.mapper; import com.baomidou.mybatisplus.core.mapper.baseMapper; import com.yrh.domain.Menu; import java.util.Set; public interface MenuMapper extends baseMapper
MenuMapper.xml
实现loadUserByUsername
@Service
public class UserDetailsServiceImpl implements UserDetailsService {
@Autowired
private UserMapper userMapper;
@Autowired
private MenuMapper menuMapper;
@Override
public UserDetails loadUserByUsername(String s) throws UsernameNotFoundException {
//查询用户信息
LambdaQueryWrapper queryWrapper=new LambdaQueryWrapper<>();
queryWrapper.eq(User::getUserName,s);
User user = userMapper.selectOne(queryWrapper);
//非空判断
if (Objects.isNull(user)){
throw new RuntimeException("用户不存在");
}
//查询对应的用户信息和权限信息
Set permissions = menuMapper.selectPermsByUserId(user.getId());
return new LoginUser(user,permissions);
}
}
该方法返回的结果是UserDetails 对象我们需要继承该对象
LoginUser.class
@Data
@AllArgsConstructor
public class LoginUser implements UserDetails {
private User user;
private Set permissions;
public LoginUser(User user, Set permissions) {
this.user = user;
this.permissions = permissions;
}
@JSonField(serialize = false)
private Set authorities;
@Override
public Collection getAuthorities() {
if (authorities!=null){
return authorities;
}
authorities = permissions.stream().
map(SimpleGrantedAuthority::new).
collect(Collectors.toSet());
return authorities;
}
@Override
public String getPassword() {
return user.getPassword();
}
@Override
public String getUsername() {
return user.getUserName();
}
@Override
public boolean isAccountNonExpired() {
return true;
}
@Override
public boolean isAccountNonLocked() {
return true;
}
@Override
public boolean isCredentialsNonExpired() {
return true;
}
@Override
public boolean isEnabled() {
return true;
}
}
注意getAuthorities是获取权限列表的方法，不需要继续序列化，直接从缓存中获取加上 @JSonField(serialize = false)注解
4、用户登录进去权限的认证和授权
步骤
- 前端调用登录接口传入登录参数
UsernamePasswordAuthenticationToken接口中存放客服端传入的参数按照重写的loadUserByUsername和密码加密规则继续比对
AuthenticationManager进行用户认证，认证通过获取存入的用户对象信息用户用户的id，通过用户的id生成一个jwt把用户信息存入到redis中把登录状态和jwt返回给前端
工具类
RedisCache 对redis操作的一些封装
@Component
public class RedisCache
{
@Autowired
public RedisTemplate redisTemplate;
public void setCacheObject(final String key, final T value)
{
redisTemplate.opsForValue().set(key, value);
}
public void setCacheObject(final String key, final T value, final Integer timeout, final TimeUnit timeUnit)
{
redisTemplate.opsForValue().set(key, value, timeout, timeUnit);
}
public boolean expire(final String key, final long timeout)
{
return expire(key, timeout, TimeUnit.SECONDS);
}
public boolean expire(final String key, final long timeout, final TimeUnit unit)
{
return redisTemplate.expire(key, timeout, unit);
}
public T getCacheObject(final String key)
{
ValueOperations operation = redisTemplate.opsForValue();
return operation.get(key);
}
public boolean deleteObject(final String key)
{
return redisTemplate.delete(key);
}
public long deleteObject(final Collection collection)
{
return redisTemplate.delete(collection);
}
public long setCacheList(final String key, final List dataList)
{
Long count = redisTemplate.opsForList().rightPushAll(key, dataList);
return count == null ? 0 : count;
}
public List getCacheList(final String key)
{
return redisTemplate.opsForList().range(key, 0, -1);
}
public BoundSetOperations setCacheSet(final String key, final Set dataSet)
{
BoundSetOperations setOperation = redisTemplate.boundSetOps(key);
Iterator it = dataSet.iterator();
while (it.hasNext())
{
setOperation.add(it.next());
}
return setOperation;
}
public Set getCacheSet(final String key)
{
return redisTemplate.opsForSet().members(key);
}
public void setCacheMap(final String key, final Map dataMap)
{
if (dataMap != null) {
redisTemplate.opsForHash().putAll(key, dataMap);
}
}
public Map getCacheMap(final String key)
{
return redisTemplate.opsForHash().entries(key);
}
public void setCacheMapValue(final String key, final String hKey, final T value)
{
redisTemplate.opsForHash().put(key, hKey, value);
}
public T getCacheMapValue(final String key, final String hKey)
{
HashOperations opsForHash = redisTemplate.opsForHash();
return opsForHash.get(key, hKey);
}
public void delCacheMapValue(final String key, final String hkey)
{
HashOperations hashOperations = redisTemplate.opsForHash();
hashOperations.delete(key, hkey);
}
public List getMultiCacheMapValue(final String key, final Collection
JwtUtil.class
对jwt操作的工具类例如从jwt中解析userId等
public class JwtUtil {
//有效期为
public static final Long JWT_TTL = 60 * 60 *1000L;// 60 * 60 *1000 一个小时
//设置秘钥明文
public static final String JWT_KEY = "sangeng";
public static String getUUID(){
String token = UUID.randomUUID().toString().replaceAll("-", "");
return token;
}
public static String createJWT(String subject) {
JwtBuilder builder = getJwtBuilder(subject, null, getUUID());// 设置过期时间
return builder.compact();
}
public static String createJWT(String subject, Long ttlMillis) {
JwtBuilder builder = getJwtBuilder(subject, ttlMillis, getUUID());// 设置过期时间
return builder.compact();
}
private static JwtBuilder getJwtBuilder(String subject, Long ttlMillis, String uuid) {
SignatureAlgorithm signatureAlgorithm = SignatureAlgorithm.HS256;
SecretKey secretKey = generalKey();
long nowMillis = System.currentTimeMillis();
Date now = new Date(nowMillis);
if(ttlMillis==null){
ttlMillis=JwtUtil.JWT_TTL;
}
long expMillis = nowMillis + ttlMillis;
Date expDate = new Date(expMillis);
return Jwts.builder()
.setId(uuid) //唯一的ID
.setSubject(subject) // 主题 可以是JSON数据
.setIssuer("sg") // 签发者
.setIssuedAt(now) // 签发时间
.signWith(signatureAlgorithm, secretKey) //使用HS256对称加密算法签名, 第二个参数为秘钥
.setExpiration(expDate);
}
public static String createJWT(String id, String subject, Long ttlMillis) {
JwtBuilder builder = getJwtBuilder(subject, ttlMillis, id);// 设置过期时间
return builder.compact();
}
public static void main(String[] args) throws Exception {
// String jwt = createJWT("2123");
Claims claims = parseJWT("eyJhbGciOiJIUzI1NiJ9.eyJqdGkiOiIyOTY2ZGE3NGYyZGM0ZDAxOGU1OWYwNjBkYmZkMjZhMSIsInN1YiI6IjIiLCJpc3MiOiJzZyIsImlhdCI6MTYzOTk2MjU1MCwiZXhwIjoxNjM5OTY2MTUwfQ.NluqZnyJ0gHz-2wBIari2r3XpPp06UMn4JS2sWHILs0");
String subject = claims.getSubject();
System.out.println(subject);
// System.out.println(claims);
}
public static SecretKey generalKey() {
byte[] encodedKey = base64.getDecoder().decode(JwtUtil.JWT_KEY);
SecretKey key = new SecretKeySpec(encodedKey, 0, encodedKey.length, "AES");
return key;
}
public static Claims parseJWT(String jwt) throws Exception {
SecretKey secretKey = generalKey();
return Jwts.parser()
.setSigningKey(secretKey)
.parseClaimsJws(jwt)
.getBody();
}
}
Redis使用FastJson序列化工具类
FastJsonRedisSerializer
public class FastJsonRedisSerializerimplements RedisSerializer { public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8"); private Class clazz; static { ParserConfig.getGlobalInstance().setAutoTypeSupport(true); } public FastJsonRedisSerializer(Class clazz) { super(); this.clazz = clazz; } @Override public byte[] serialize(T t) throws SerializationException { if (t == null) { return new byte[0]; } return JSON.toJSonString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET); } @Override public T deserialize(byte[] bytes) throws SerializationException { if (bytes == null || bytes.length <= 0) { return null; } String str = new String(bytes, DEFAULT_CHARSET); return JSON.parseObject(str, clazz); } protected JavaType getJavaType(Class clazz) { return TypeFactory.defaultInstance().constructType(clazz); } }
WebUtils 用户返回给前端对应信息的工具类
public class WebUtils
{
public static String renderString(HttpServletResponse response, String string) {
try
{
response.setStatus(200);
response.setContentType("application/json");
response.setCharacterEncoding("utf-8");
response.getWriter().print(string);
}
catch (IOException e)
{
e.printStackTrace();
}
return null;
}
}
配置类
RedisConfig
@Configuration
public class RedisConfig {
@Bean
@SuppressWarnings(value = { "unchecked", "rawtypes" })
public RedisTemplate redisTemplate(RedisConnectionFactory connectionFactory)
{
RedisTemplate template = new RedisTemplate<>();
template.setConnectionFactory(connectionFactory);
FastJsonRedisSerializer serializer = new FastJsonRedisSerializer(Object.class);
// 使用StringRedisSerializer来序列化和反序列化redis的key值
template.setKeySerializer(new StringRedisSerializer());
template.setValueSerializer(serializer);
// Hash的key也采用StringRedisSerializer的序列化方式
template.setHashKeySerializer(new StringRedisSerializer());
template.setHashValueSerializer(serializer);
template.afterPropertiesSet();
return template;
}
}
SecurityConfig
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
//关闭csrf
.csrf().disable()
//不通过Session获取SecurityContext
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and()
.authorizeRequests()
// 对于登录接口 允许匿名访问
.antMatchers("/user/login").anonymous()
// .antMatchers("/testCors").hasAuthority("system:dept:list222")
// 除上面外的所有请求全部需要鉴权认证
.anyRequest().authenticated();
}
}
导入依赖
org.springframework.boot
spring-boot-starter-data-redis
com.alibaba
fastjson
1.2.33
io.jsonwebtoken
jjwt
0.9.0
步骤一：
登录接口
@RestController
public class LoginController {
@Autowired
private LoginService loginService;
@PostMapping("/user/login")
public ResponseResult login(@RequestBody User user){
return loginService.login(user);
}
}
接口方法编写
public interface LoginService {
//登录接口
public ResponseResult login(User user);
ResponseResult logout();
}
接口实现类编写
LoginServiceImpl.class
@Service
public class LoginServiceImpl implements LoginService {
@Autowired
private AuthenticationManager authenticationManager;
@Autowired
private RedisCache redisCache;
@Override
public ResponseResult login(User user) {
//AuthenticationManager authenticate进行用户认证
UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(user.getUserName(), user.getPassword());
Authentication authenticate = authenticationManager.authenticate(authenticationToken);
//是否为空
if (Objects.isNull(authenticate)) {
throw new RuntimeException("登录失败");
}
//如果认证通过了，使用userid生成一个jwt jwt存入ResponseResult返回
LoginUser loginUser = (LoginUser) authenticate.getPrincipal();
String userId = loginUser.getUser().getId().toString();
//返回给前端的jwt
String jwt = JwtUtil.createJWT(userId);
//存入到redis中
redisCache.setCacheObject("login:" + userId, loginUser);
HashMap token = new HashMap<>();
token.put("token", jwt);
return new ResponseResult(200, "登录成功", token);
}
}
步骤二
UsernamePasswordAuthenticationToken接口中存放客服端传入的参数按照重写的loadUserByUsername和密码加密规则继续比对
在SecurityConfig中配置加密规则
//创建BCryptPasswordEncoder注入容器
@Bean
public PasswordEncoder passwordEncoder(){
return new BCryptPasswordEncoder();
}
步骤三 AuthenticationManager进行用户认证，认证通过获取存入的用户对象信息
在SecurityConfig中添加认证
@Bean
@Override
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
步骤四五六在步骤三成功后执行
用postman进行登录接口测试
5.jwt的使用
场景运用
前端请求接口的接口的时候需要携带token信息，我们在用户认证之前应该对先拦截请求，从请求头中看是否携带了token，验证token信息决定是否放行，需要注意对登录方法放行
步骤一
自定义一个拦截器用来拦截用户请求
步骤二
判断是否携带token未携带则放行
步骤三
解析token获取用户userId
步骤四
通过uersId获取redis中的对象信息判断是否存在
步骤五
把用户信息和权限信息存入到Authentication中
步骤六在securityConfig中配置Filter
JwtAuthenticationTokenFilter.class
@Component
public class JwtAuthenticationTokenFilter extends oncePerRequestFilter {
@Autowired
private RedisCache redisCache;
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
//获取token
String token = request.getHeader("token");
//判断是否携带token
if (!StringUtils.hasText(token)) {
//为空放行
filterChain.doFilter(request, response);
return;
}
//解析token
String userId;
try {
Claims claims = JwtUtil.parseJWT(token);
userId = claims.getSubject();
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("token出错");
}
//从redis中获取对象信息
String redisKey = "login:" + userId;
LoginUser user = redisCache.getCacheObject(redisKey);
if (Objects.isNull(user)) {
throw new RuntimeException("用户未登录");
}
//存入SecurityContextHolder
//TODO 获取权限信息封装到Authentication中
UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(user,null,user.getAuthorities());
SecurityContextHolder.getContext().setAuthentication(authenticationToken);
filterChain.doFilter(request, response);
}
}
securityConfig中配置Filter
指定在UsernamePasswordAuthenticationFilter过滤器之前进行拦截
//jwt过滤器
@Autowired
private JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;
@Override
protected void configure(HttpSecurity http) throws Exception {
http
//关闭csrf
.csrf().disable()
//不通过Session获取SecurityContext
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and()
.authorizeRequests()
// 对于登录接口 允许匿名访问
.antMatchers("/user/login").anonymous()
// .antMatchers("/testCors").hasAuthority("system:dept:list222")
// 除上面外的所有请求全部需要鉴权认证
.anyRequest().authenticated();
//添加过滤器
http.addFilterBefore(jwtAuthenticationTokenFilter,UsernamePasswordAuthenticationFilter.class);
}
测试
未携带token
携带token
5.1权限的验证
@PreAuthorize("hasAuthority('system:dept:list')")
只需要在方法上加入这个注解里面添加的system:dept:list字符串会根据对应的表达式规则进行权限的验证，该方法通过获取Authentication中的权限列表进行比对，满足条件返回ture否在flase，
@RestController
public class HelloController {
@RequestMapping("/hello")
@PreAuthorize("hasAuthority('system:dept:list')")
public String hello(){
return "hello";
}
}
数据库对应该用户的权限
6，自定义认证异常和授权异常处理
认证异常结果处理实现AuthenticationEntryPoint接口把异常结果响应给前端
AuthenticationEntryPointImpl.class
@Component
public class AuthenticationEntryPointImpl implements AuthenticationEntryPoint {
@Override
public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException e) throws IOException, ServletException {
//自定义返回结果集
ResponseResult responseResult=new ResponseResult(HttpStatus.UNAUTHORIZED.value(),"用户认证失败请查询登录");
String json = JSON.toJSonString(responseResult);
//响应前台异常信息
WebUtils.renderString(response,json);
}
}
授权异常处理
实现AccessDeniedHandler接口
AccessDeniedHandlerImpl.class
@Component
public class AccessDeniedHandlerImpl implements AccessDeniedHandler {
@Override
public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException e) throws IOException, ServletException {
//自定义返回结果集
ResponseResult responseResult=new ResponseResult(HttpStatus.FORBIDDEN.value(),"您的权限不足");
String json = JSON.toJSonString(responseResult);
//响应前台异常信息
WebUtils.renderString(response,json);
}
}
在SecurityConfig中配置异常信息处理
//认证异常
@Autowired
private AuthenticationEntryPoint authenticationEntryPoint;
//授权异常
@Autowired
private AccessDeniedHandler accessDeniedHandler;
@Override
protected void configure(HttpSecurity http) throws Exception {
http
//关闭csrf
.csrf().disable()
//不通过Session获取SecurityContext
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and()
.authorizeRequests()
// 对于登录接口 允许匿名访问
.antMatchers("/user/login").anonymous()
// .antMatchers("/testCors").hasAuthority("system:dept:list222")
// 除上面外的所有请求全部需要鉴权认证
.anyRequest().authenticated();
//添加过滤器
http.addFilterBefore(jwtAuthenticationTokenFilter,UsernamePasswordAuthenticationFilter.class);
//配置异常处理器;
http.exceptionHandling()
//配置授权失败处理器
.accessDeniedHandler(accessDeniedHandler).
//配置认证失败
authenticationEntryPoint(authenticationEntryPoint);
}
7.配置可以请求
在前后端分离项目中必然存在跨域请求问题我们在spingBoot中进行配置然后在配置在securityConfig中
CorsConfig.class 跨域请求配置
@Configuration
public class CorsConfig implements WebMvcConfigurer {
@Override
public void addCorsMappings(CorsRegistry registry) {
// 设置允许跨域的路径
registry.addMapping("/**")
// 设置允许跨域请求的域名
.allowedOriginPatterns("*")
// 是否允许cookie
.allowCredentials(true)
// 设置允许的请求方式
.allowedMethods("GET", "POST", "DELETE", "PUT")
// 设置允许的header属性
.allowedHeaders("*")
// 跨域允许时间
.maxAge(3600);
}
}
在securityConfig进行配置
@Override
protected void configure(HttpSecurity http) throws Exception {
http
//关闭csrf
.csrf().disable()
//不通过Session获取SecurityContext
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and()
.authorizeRequests()
// 对于登录接口 允许匿名访问
.antMatchers("/user/login").anonymous()
// .antMatchers("/testCors").hasAuthority("system:dept:list222")
// 除上面外的所有请求全部需要鉴权认证
.anyRequest().authenticated();
//添加过滤器
http.addFilterBefore(jwtAuthenticationTokenFilter,UsernamePasswordAuthenticationFilter.class);
//配置异常处理器;
http.exceptionHandling()
//配置授权失败处理器
.accessDeniedHandler(accessDeniedHandler).
//配置认证失败
authenticationEntryPoint(authenticationEntryPoint);
//允许跨域
http.csrf();
}
//允许跨域
http.csrf();
