目录
- 引出
- 使用token的权限验证方法
- 流程
- 用户、角色、权限表设计
- 权限表
- 角色表
- 角色-权限关联表
- 用户表
- 查询用户的权限(四表联查)
- 数据库的视图
- 项目中的应用
- 自定义注解
- 拦截器
- controller层
- DTO返回给前端
- 枚举类型的json化
- 日期json问题
- 实体类-DAO
- 总结
引出
1.认证鉴权服务,注册中心,认证中心,鉴权中心;
2.用户,角色,权限表设计,数据库视图的使用;
3.项目中的应用,使用自定义注解+拦截器;
4.枚举类型的json化, @JsonFormat(shape = JsonFormat.Shape.OBJECT) @Getter
https://gitee.com/pet365/springboot-privs-token
使用token的权限验证方法
流程
用户、角色、权限表设计
用户和权限之间关系(多对多)
中间内容: 角色
(本系统中: user—》角色(one-to-Many)
权限表
角色表
角色-权限关联表
用户表
查询用户的权限(四表联查)
-- 用户角色-权限模型
SELECT
user_owner.username,privs_role_tab.role_name,privs_tab.privs_name
FROM user_owner
LEFT JOIN privs_role_tab ON user_owner.user_role = privs_role_tab.role_id
LEFT JOIN privs_relationship_tab ON privs_relationship_tab.rp_role = privs_role_tab.role_id
LEFT JOIN privs_tab ON privs_tab.privs_id=privs_relationship_tab.rp_privs
数据库的视图
项目中的应用
https://gitee.com/pet365/springboot-privs-token
自定义注解
PrivsCheck.java文件
package com.tianju.auth.util;
import java.lang.annotation.*;
/**
* 定义注解
*/
@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface PrivsCheck {
String value() default "";
}
拦截器
AuthInterceptor.java文件
package com.tianju.auth.interceptor;
import cn.hutool.json.JSONUtil;
import com.tianju.auth.dto.HttpResp;
import com.tianju.auth.dto.ResultCode;
import com.tianju.auth.util.JwtUtil;
import com.tianju.auth.util.PrivsCheck;
import io.jsonwebtoken.ExpiredJwtException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Date;
@Component
@Slf4j
public class AuthInterceptor implements HandlerInterceptor {
/**
*
* @param request 请求
* @param response 响应
* @param handler =====>handler====>:class org.springframework.web.method.HandlerMethod
* com.tianju.auth.controller.UserController#findAllUsernames()
* 类 的 findAllUsernames() 方法
* Method method = handlerMethod.getMethod();// controller里面的方法findAllUsernames 对象
* Annotation[] annotations = method.getDeclaredAnnotations();// 可以获得该方法上的所有注解
* @return 是否拦截
* @throws Exception token过期异常
*/
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
String token = request.getHeader("token");
response.setContentType("text/html;charset=utf-8");
if (token==null){ // 如果没有token,返回false
response.getWriter().write(
JSONUtil.toJsonStr(
HttpResp.results(
ResultCode.USER_NOT_LOGIN_ERROR, new Date(),"用户没有登陆异常"
)));
return false;
}
// 存在的用户,检验token是否过期
try {
// 正常情况
String username = JwtUtil.getClaim(token, "username");
String privs = JwtUtil.getClaim(token, "privs");
// 判断是否能够访问当前的方法
log.info("用户权限{}",privs);
// handler:com.tianju.auth.controller.UserController#findAllUsernames()
log.debug("handler:{}",handler);
HandlerMethod handlerMethod = (HandlerMethod) handler;
Method method = handlerMethod.getMethod();// controller里面的方法findAllUsernames 对象
Annotation[] annotations = method.getDeclaredAnnotations();// 可以获得该方法上的所有注解
/**
* @org.springframework.web.bind.annotation.GetMapping(path=[], headers=[], name=, produces=[], params=[], value=[/findAllUsernames], consumes=[])
* @io.swagger.annotations.ApiOperation(code=200, notes=, hidden=false, authorizations=[@io.swagger.annotations.Authorization(scopes=[@io.swagger.annotations.AuthorizationScope(scope=, description=)], value=)], httpMethod=, tags=[查询所有用户名], extensions=[@io.swagger.annotations.Extension(name=, properties=[@io.swagger.annotations.ExtensionProperty(parseValue=false, name=, value=)])], responseHeaders=[@io.swagger.annotations.ResponseHeader(name=, responseContainer=, description=, response=class java.lang.Void)], response=class java.lang.Void, responseReference=, responseContainer=, produces=, nickname=, ignoreJsonView=false, position=0, protocols=, consumes=, value=findAllUsernames)
* @com.tianju.auth.util.PrivsCheck(value=findAllUsernames)
*/
// for (Annotation annotation: annotations) {
// /**
// * @org.springframework.web.bind.annotation.GetMapping(path=[], headers=[], name=, produces=[], params=[], value=[/findAllUsernames], consumes=[])
// * @io.swagger.annotations.ApiOperation(code=200, notes=, hidden=false, authorizations=[@io.swagger.annotations.Authorization(scopes=[@io.swagger.annotations.AuthorizationScope(scope=, description=)], value=)], httpMethod=, tags=[查询所有用户名], extensions=[@io.swagger.annotations.Extension(name=, properties=[@io.swagger.annotations.ExtensionProperty(parseValue=false, name=, value=)])], responseHeaders=[@io.swagger.annotations.ResponseHeader(name=, responseContainer=, description=, response=class java.lang.Void)], response=class java.lang.Void, responseReference=, responseContainer=, produces=, nickname=, ignoreJsonView=false, position=0, protocols=, consumes=, value=findAllUsernames)
// * @com.tianju.auth.util.PrivsCheck(value=findAllUsernames)
// */
// }
PrivsCheck annotation = method.getDeclaredAnnotation(PrivsCheck.class);
System.out.println(annotation.value());
if (privs.contains(annotation.value())){ // 有此权限
return true;
}else {
response.getWriter().write(
JSONUtil.toJsonStr(
HttpResp.results(
ResultCode.USER_ACCESS_ERROR, new Date(),"对不起权限不足"
)));
return false;
}
}catch (ExpiredJwtException e){
// token过期
response.getWriter().write(
JSONUtil.toJsonStr(
HttpResp.results(
ResultCode.USER_LOGIN_TOKEN_EXPIRED_ERROR, new Date(),"token过期"
)));
return false;
}
}
}
拦截器的配置AuthConfig.java文件
package com.tianju.auth.config;
import com.tianju.auth.interceptor.AuthInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@Configuration
public class AuthConfig implements WebMvcConfigurer {
@Autowired
private AuthInterceptor authInterceptor;
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(authInterceptor)
.addPathPatterns("/api/**")
.excludePathPatterns("/api/user/login");
}
}
controller层
package com.tianju.auth.controller;
import com.tianju.auth.dto.HttpResp;
import com.tianju.auth.dto.ResultCode;
import com.tianju.auth.entity.UserPrivs;
import com.tianju.auth.service.IUserService;
import com.tianju.auth.util.JwtUtil;
import com.tianju.auth.util.PrivsCheck;
import io.swagger.annotations.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletResponse;
import java.util.Date;
import java.util.List;
@RestController
@RequestMapping("/api/user")
@Api(tags = "用户api接口")
public class UserController {
@Autowired
private IUserService userService;
@ApiOperation(value = "login",tags = "用户登录接口")
@ApiImplicitParams({
@ApiImplicitParam(name = "username",value = "用户名",required = true),
@ApiImplicitParam(name = "password",value = "密码",required = true)
})
@GetMapping("/login")
public HttpResp login(String username, String password, HttpServletResponse response){
List<UserPrivs> users = userService.login(username, password);
StringBuilder privs = new StringBuilder();
users.forEach(userPrivs -> privs.append(userPrivs.getPrivsName()+","));
System.out.println("用户权限:"+privs);
privs.deleteCharAt(privs.length()-1);
String token = JwtUtil.createToken(username, privs.toString(), 1000 * 60);
response.addHeader("token", token);
return HttpResp.results(ResultCode.USER_LOGIN_SUCCESS,new Date(),username);
}
@GetMapping("/findAllUsernames")
@ApiOperation(value = "findAllUsernames",tags = "查询所有用户名")
// @PrivsCheck("findAllUsernames")
@PrivsCheck("findX") // 设置一个没有的权限
public HttpResp findAllUsernames(){
List<String> allUsernames = userService.findAllUsernames();
return HttpResp.results(ResultCode.USER_QUERY_SUCCESS,new Date(),allUsernames);
}
}
DTO返回给前端
枚举类型的json化
@JsonFormat(shape = JsonFormat.Shape.OBJECT)
package com.tianju.auth.dto;
import com.fasterxml.jackson.annotation.JsonFormat;
import io.swagger.annotations.ApiModelProperty;
import lombok.Getter;
/**
* 枚举类型,http请求的返回值
*/
// 枚举类型的json化,需要有get方法
@JsonFormat(shape = JsonFormat.Shape.OBJECT)
@Getter
public enum ResultCode {
BOOK_RUSH_SUCCESS(20010,"图书抢购成功"),
BOOK_RUSH_ERROR(3001,"图书抢购失败"),
LUA_SCRIPT_ERROR(3002,"Lua脚本操作失败"),
USER_FIND_ERROR(40010,"非法请求,布隆过滤器不通过"),
USER_FIND_SUCCESS(20010,"查询用户名成功"),
USER_QUERY_SUCCESS(25010,"查询所有用户名成功"),
USER_LOGIN_ERROR(40030,"用户登陆失败"),
USER_NOT_LOGIN_ERROR(40040,"用户没有登陆异常"),
USER_LOGIN_TOKEN_EXPIRED_ERROR(42040,"token已过期异常"),
USER_ACCESS_ERROR(45040,"用户权限异常"),
USER_LOGIN_SUCCESS(20020,"用户登陆成功"),
;
@ApiModelProperty("状态码")
private Integer code;
@ApiModelProperty("提示信息")
private String msg;
private ResultCode(Integer code,String msg){
this.code =code;
this.msg = msg;
}
}
日期json问题
@JsonFormat(timezone = “GMT+8”)
package com.tianju.auth.dto;
import com.fasterxml.jackson.annotation.JsonFormat;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.io.Serializable;
import java.util.Date;
/**
* 返回给前端的响应
* @param <T>
*/
@ApiModel("DTO返回数据")
@Data
@NoArgsConstructor
@AllArgsConstructor
public class HttpResp<T> implements Serializable {
private ResultCode resultCode;
@ApiModelProperty("time")
@JsonFormat(pattern = "yyyy-MM-dd hh:mm:ss",timezone = "GMT+8")
private Date time;
@ApiModelProperty("results")
private T result;
public static <T> HttpResp <T> results(
ResultCode resultCode,
Date time,
T results){
HttpResp httpResp = new HttpResp();
httpResp.setResultCode(resultCode);
httpResp.setTime(time);
httpResp.setResult(results);
return httpResp;
}
}
实体类-DAO
package com.tianju.auth.entity;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@NoArgsConstructor
@AllArgsConstructor
@TableName("user_privs_view")
public class UserPrivs {
@TableField("username")
private String username;
@TableField("password")
private String password;
@TableField("role_name")
private String roleName;
@TableField("privs_name")
private String privsName;
}
dao
package com.tianju.auth.mapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.tianju.auth.entity.UserPrivs;
import org.apache.ibatis.annotations.Mapper;
@Mapper
public interface UserMapper extends BaseMapper<UserPrivs> {
}
总结
1.认证鉴权服务,注册中心,认证中心,鉴权中心;
2.用户,角色,权限表设计,数据库视图的使用;
3.项目中的应用,使用自定义注解+拦截器;
4.枚举类型的json化, @JsonFormat(shape = JsonFormat.Shape.OBJECT) @Getter