BaseController.java_basecontroller获取token-优快云博客

本文链接：https://blog.youkuaiyun.com/somdip/article/details/89885909

博客介绍统一处理异常的方法，同时要接收前台传来的token，还提及了在js中放置token以及java相关内容，聚焦于信息技术领域的异常处理和token操作。

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用法：统一处理异常，并接受前台传的token。

js 放置token

 $.ajax({
                url : loadUrl,
                method : 'POST',
                dataType: 'json',
                data : bodyParam,
                async:false,
               /* beforeSend : function(request) {
                    request.setRequestHeader("Authorization", $api.getStorage("token"));
                },*/
                success:function(data,text){
                   
                   
                },error: function(data, status, e) {
                    alert(系统内部错误);
                  
                },
                complete: function(XMLHttpRequest, status) { //请求完成后最终执行参数

                 
                }
            });

java

package com.navitek.maternal.common;

import com.alibaba.fastjson.JSON;
import com.navitek.maternal.common.utils.ResultUtils;
import com.navitek.maternal.common.utils.TokenUtils;
import com.navitek.maternal.common.utils.WebUtil;
import com.navitek.maternal.exception.BDException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.ExceptionHandler;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * @Auther: Administrator
 * @Date: 2018/8/10 0010 14:27
 * @Description:
 */
@Slf4j
public class BaseController {
    /**
     * httpServletRequest,httpServletResponse 线程安全直接引入。
     */
    @Autowired
    protected HttpServletRequest httpServletRequest;

    @Autowired
    protected HttpServletResponse httpServletResponse;
    @ExceptionHandler
    public void exp(HttpServletRequest request, HttpServletResponse response, Exception ex) throws IOException {
        log.error("异常：",ex);
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json; charset=utf-8");
        PrintWriter pw = response.getWriter();
        String msg  = "服务器异常";
        if(ex instanceof BDException){
            BDException exception = (BDException) ex;
            msg =  exception.getMessage();
            pw.print(JSON.toJSONString(ResultUtils.errorCode(exception.getCode(),msg)));
        }else{
            pw.print(JSON.toJSONString(ResultUtils.errorCode(500,msg)));
        }
        pw.flush();
        pw.close();
    }
    /**
     * 获取用户userId
     *
     * @return
     */
    protected String getUserId() {
        String token = httpServletRequest.getHeader("Authorization");
        String userId =  TokenUtils.getUserId(token);
        return  userId;
    }
    /**
     * 获取token
     *
     * @return
     */
    protected String getToken() {
        String token = httpServletRequest.getHeader("Authorization");
        return token;
    }
    protected int getPageNum() {
        int pageNum = WebUtil.getParameterInt(httpServletRequest, "pageNum", 1);
        return pageNum;
    }

    protected int getPageSize() {
        int pageSize = WebUtil.getParameterInt(httpServletRequest, "pageSize", 10);
        return pageSize;
    }
}