制冷 网站建设 中企动力,网站开发命名规则,企业微信官网,杨浦建设机械网站说明#xff1a;基于spring boot进行的校验
1.熟悉如何使用jwt令牌。#xff08;不会的看这里#xff1a;带你领略JWTl令牌的魅力#xff01;#xff01;#xff01;-CSDN博客#xff09; Filter和Interceptor共用文件#xff1a;#xff08;可以仿照#xff0c;根据…说明基于spring boot进行的校验
1.熟悉如何使用jwt令牌。不会的看这里带你领略JWTl令牌的魅力-CSDN博客 Filter和Interceptor共用文件可以仿照根据你的实际情况
controller层代码
/** Copyright (c) 2020, 2023, All rights reserved.**/
package com.itheima.controller;import com.itheima.pojo.Emp;
import com.itheima.pojo.Result;
import com.itheima.service.EmpService;
import com.itheima.utils.JwtUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;import java.util.HashMap;
import java.util.Map;/*** pProject: tlias-web-management - LoginController/p* pPowered by scl On 2023-10-16 14:16:46/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
Slf4j
RestController
public class LoginController {Autowiredprivate EmpService empService;PostMapping(/login)public Result login(RequestBody Emp emp) {log.info(员工登录{}, emp);Emp e empService.login(emp);//登录成功生成令牌下发令牌if (e ! null) {MapString, Object climas new HashMap();climas.put(id, e.getId());climas.put(name, e.getName());climas.put(username, e.getUsername());String s JwtUtils.generateJwt(climas);return Result.success(s);}return Result.error(用户名或密码错误);}
}
service层代码
package com.itheima.service;import com.itheima.pojo.Emp;
import com.itheima.pojo.PageBean;
import org.springframework.format.annotation.DateTimeFormat;import java.time.LocalDate;
import java.util.List;/*** pProject: tlias-web-management - EmpService/p* pPowered by scl On 2023-10-12 15:31:01/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
public interface EmpService {/*** 用户登录* param emp* return*/Emp login(Emp emp);
}mapper层代码
package com.itheima.mapper;import com.itheima.pojo.Emp;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;import java.time.LocalDate;
import java.util.List;/*** pProject: tlias-web-management - EmpMapper/p* pPowered by scl On 2023-10-12 15:29:01/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
Mapper
public interface EmpMapper {/*** 用户登录* param emp* return*/Select(select * from emp where username#{username} and password#{password})Emp getByUserNameAndPwd(Emp emp);
}Result响应代码
package com.itheima.pojo;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;Data
NoArgsConstructor
AllArgsConstructor
public class Result {private Integer code;//响应码1 代表成功; 0 代表失败private String msg; //响应信息 描述字符串private Object data; //返回的数据//增删改 成功响应public static Result success(){return new Result(1,success,null);}//查询 成功响应public static Result success(Object data){return new Result(1,success,data);}//失败响应public static Result error(String msg){return new Result(0,msg,null);}
}2.Filter校验器
①首先需要在pom文件中添加依赖
!--jwt令牌--!-- jjwt-api --dependencygroupIdio.jsonwebtoken/groupIdartifactIdjjwt/artifactIdversion0.9.1/version/dependency
!-- fastJson--dependencygroupIdcom.alibaba/groupIdartifactIdfastjson/artifactIdversion1.2.62/version/dependency ②创建Filter过滤器
/** Copyright (c) 2020, 2023, All rights reserved.**/
package com.itheima.filter;import com.alibaba.fastjson.JSONObject;
import com.itheima.pojo.Result;
import com.itheima.utils.JwtUtils;
import jakarta.servlet.*;
import jakarta.servlet.annotation.WebFilter;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
import org.springframework.util.StringUtils;import java.io.IOException;
import java.util.Locale;/*** pProject: tlias-web-management - LoginCheckFilter/p* pPowered by scl On 2023-10-17 16:30:20/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
Slf4j
WebFilter(urlPatterns /*)
public class LoginCheckFilter implements Filter {Overridepublic void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {HttpServletResponse resp (HttpServletResponse) servletResponse;HttpServletRequest req (HttpServletRequest) servletRequest;//获取urlString url req.getRequestURI().toString();log.info(获取的url:{},url);//判断url中是否包含loginif (url.contains(login)){filterChain.doFilter(servletRequest,servletResponse);return;}//获取请求头的内容String jwt req.getHeader(token);//判断jwt令牌是否存在if (!StringUtils.hasLength(jwt)){log.info(请求头token不存在);Result error Result.error(NOT_LOGIN);String nologin JSONObject.toJSONString(error);resp.getWriter().write(nologin);return;}//解析jtw令牌try {JwtUtils.parseJWT(jwt);} catch (Exception e) {e.printStackTrace();log.info(jwt令牌解析错误,);Result error Result.error(NOT_LOGIN);String nologin JSONObject.toJSONString(error);resp.getWriter().write(nologin);return;}//jwt令牌解析成功放行log.info(放行);filterChain.doFilter(servletRequest,servletResponse);}
}
3.Interceptor拦截器
①创建拦截器
/** Copyright (c) 2020, 2023, All rights reserved.**/
package com.itheima.interceptor;import com.alibaba.fastjson.JSONObject;
import com.itheima.pojo.Result;
import com.itheima.utils.JwtUtils;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;/*** pProject: tlias-web-management - LoginCheckInterceptor/p* pPowered by scl On 2023-10-17 17:18:06/p* p描述p** author 孙臣龙 [1846080280qq.com]* version 1.0* since 17*/
Slf4j
Component
public class LoginCheckInterceptor implements HandlerInterceptor {Override //目标资源方法运行前运行返回true放行返回false不放行public boolean preHandle(HttpServletRequest req, HttpServletResponse resp, Object handler) throws Exception {//获取urlString url req.getRequestURI().toString();log.info(获取的url:{},url);//判断url中是否包含loginif (url.contains(login)){return true;}//获取请求头的内容String jwt req.getHeader(token);//判断jwt令牌是否存在if (!StringUtils.hasLength(jwt)){log.info(请求头token不存在);Result error Result.error(NOT_LOGIN);String nologin JSONObject.toJSONString(error);resp.getWriter().write(nologin);return false;}//解析jtw令牌try {JwtUtils.parseJWT(jwt);} catch (Exception e) {e.printStackTrace();log.info(jwt令牌解析错误,);Result error Result.error(NOT_LOGIN);String nologin JSONObject.toJSONString(error);resp.getWriter().write(nologin);return false;}//jwt令牌解析成功放行log.info(放行);return true;}Override //目标资源方法后运行public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {System.out.println(postHandle...);}Override //最后运行public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {System.out.println(afterCompletion...);}
}
说明一下有实体类代码我没有上传需要根据你自己的数据库决定Filter和Interceptor使用一个就可以了。
