ajax 调用SpringBoot中的restful接口两个ajax分别请求两个不同的接口，要使两个接口中的session是同一个（session共享）

前后端交互案例

最新推荐文章于 2022-05-15 18:31:20 发布

原创最新推荐文章于 2022-05-15 18:31:20 发布 · 1k 阅读

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本文介绍了一个具体的前后端交互示例，包括使用jQuery发起AJAX请求从后端获取用户信息及证书的过程。前端通过POST方式调用后端API获取用户信息，并在成功后进一步发起GET请求获取用户证书。后端采用Spring框架，通过RestController接收请求并处理，利用Session存储和读取用户ID，最终返回JSON格式的数据。

前端代码：
<script src="jquery-3.4.1.min.js"></script>
<script type="text/javascript">

function getUser(){
   $.ajax({
url:"http://192.168.1.103:8080/user/getUserInfo?userId=123asdf123",
           type:"POST",
               xhrFields:{withCredentials:true},
               crossDomain: true,
           success:function(data){

                   $.ajax({
                       url:"http://192.168.1.103:8080/user/userCertificate",
                       type:"GET",
                       xhrFields:{withCredentials:true},
                       crossDomain: true,
                       success:function(data){
                           alert("SUCCESS!");
                       },
                       error : function(e) {
                           //alert("出错");
                           alert(e.responseText);
                       },
                   })

           },
           error : function(e) {



   },
       })
}
   getUser();
</script>

后端代码：

package com.honeycombtech.industrialdiagnosis.controller;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping(value = {"/user"})
public class UserController {
   private Logger log = Logger.getLogger(UserController.class);

    @RequestMapping(value = {"/getUserInfo"},produces = {"application/json;charset=UTF-8"},method = RequestMethod.POST)
   public String getUserInfo(HttpServletRequest request,String userId){//,String userName
      HttpSession session = request.getSession();
      session.setAttribute("userId",userId);
      if(userId!=null && !userId.equals("null")&& !userId.equals("")) {
         return "200";
      }
      return "500";
   }

    @RequestMapping(value = {"/userCertificate"},produces = {"application/json;charset=UTF-8"},method = RequestMethod.GET)
    public String userCertificate(HttpServletRequest request, HttpServletResponse response){
        JSONArray jsonArray = new JSONArray();
        Map<String, Object> map = new HashMap<String, Object>();
        Object id = request.getSession().getAttribute("userId");
        String userId = String.valueOf(id);
        map = diagnosticService.checkUserStatus(request,response,userId);
        jsonArray.add(map);
        return jsonArray.toString();
    }

}