我这ajax总是error？

这是servlet



import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.ServletRequestAttributeEvent;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonArrayFormatVisitor;

import jdk.nashorn.internal.runtime.linker.LinkerCallSite;
import net.sf.json.JSONArray;

/**
 * Servlet implementation class Process
 */
@WebServlet("/Process")
public class Process extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public Process() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		//response.getWriter().append("Served at: ").append(request.getContextPath());
		//doPost(request, response);
		
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		//doGet(request, response);
		List<test> list = new ArrayList<test>();
		list.add(new test( 20,1 ));
		list.add(new test( 10,2 ));
		list.add(new test( 30,3 ));
		list.add(new test( 25,4 ));
		list.add(new test( 50,5 ));
		list.add(new test( 5,6 ));
		list.add(new test( 15,7 ));
		
//		ObjectMapper mapper = new ObjectMapper();//提供java-json相互转换的类
//		String json = mapper.writeValueAsString(list);
//		System.out.println(json);		
		JSONArray jsonArray = JSONArray.fromObject(list);
		response.getWriter().println(jsonArray);
		
	}

}

这是前端

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script src="jquery-3.5.1.js"></script>
<script src="echarts.min.js"></script>
</head>
<body>

<!-- 为echarts准备一个具备大小的容器 -->
    <div id="graph" style="width: 600px; height:400px;"></div>
    <script type="text/javascript">
    //基于准备好的dom，初始化ecahrts实例
    var myChart = echarts.init(document.getElementById("graph"));
    
    //指定图标的配置项和数据
    myChart.setOption = {
            title:{
                text:"数据可视化"
            },
            tooltip: {},
            legend: {
                left:"right",
                data:["浓度"]
            },
            xAxis:{                
                data:[]
            },
            yAxis:{  },
            series:[{
                name:'浓度',
                data:[]
            }]
            
    };
    var XX = [];//x轴坐标值
    var YY = [];//y轴坐标值
    
    //Ajax发起数据请求
    $.ajax({
        type:'post',
        async:true,//异步请求
        url:"Process",
        data:{},
        dataType: "json",
        
        //请求成功后接受接收数据xtime+yppm两组数据；
        success : function (result) {
        	alert("asdsad") 
            //result为服务器返回的json对象
            if(result){
            //取出数据存放数组
            for(var i=0;i<result.length;i++)
                XX.push(result[i].x);
            for(var i=0;i<result.length;i++)
                YY.push(result[i].y);
            
            //覆盖操作根据数据加载数据表
            myChart.setOption({
                xAxis: {data: XX},
                series:[{
                    //name:"浓度",
                    date:YY
                        }]
            });
            }
        },
        error : function(errorMsg){
            //请求失败时执行该函数
            alert("图标数据请求失败");
            myChart.hideloading();
        }
     
    })
      
    
    </script>





</body>
</html>
目录结构 标题

 

url:"Process",地址应该加一个斜杠url:"/Process",

目录结构

 

error信息是什么

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