Eclipse、Tomcat安裝配置及部署教程 先看這個(gè)https://blog.csdn.net/zeroheitao/article/details/108970713
tomcat安裝 看這個(gè) https://blog.csdn.net/qq_51452157/article/details/122459707

eclipse沒有sever選項(xiàng) 看這個(gè) https://blog.csdn.net/boringboo/article/details/124980241

eclipse新建項(xiàng)目沒有Dynamic Web Project 看這個(gè)https://blog.csdn.net/qq_29774003/article/details/108023831

解決tomcat項(xiàng)目標(biāo)紅https://blog.csdn.net/yjh_dream/article/details/79726467

項(xiàng)目沒有pom.xml選項(xiàng)看這個(gè) https://blog.csdn.net/Roger_CoderLife/article/details/90601845

java對象轉(zhuǎn)JSON https://zhuanlan.zhihu.com/p/39870112

c:forEach無法使用解決方案：https://blog.csdn.net/winter2121/article/details/84978273
https://blog.csdn.net/admin_web/article/details/121733872

跳轉(zhuǎn)jsp
    String user = "我是一些中間處理的數(shù)據(jù)";
            // 放入Request中:
            req.setAttribute("user", user);
            // 轉(zhuǎn)給home.jsp:
            req.getRequestDispatcher("/WEB-INF/home.jsp").forward(req, resp);

定義接口

import java.io.IOException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.util.Base64;  //引用工具類
import com.alibaba.fastjson.JSON;  
import com.alibaba.fastjson.JSONArray;  
import com.alibaba.fastjson.JSONObject; 

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(urlPatterns = "/getUser")
public class getUser extends HttpServlet {
    private static final long serialVersionUID = 1L;
    String[] ss = new String[10];
    String name ="xcy";
     protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
         resp.setContentType("application/json;charset=utf-8");
         resp.setStatus(200);
          //response.sendError(500);
           JSONObject jObject=new JSONObject();  
           jObject.put("username", "xiejava");  
           jObject.put("sex", "man");  
           jObject.put("age", 38);  
           jObject.put("email", "xiejava@ishareread.com"); 
           String json2=jObject.toJSONString();
          //獲取輸出流
          PrintWriter out = resp.getWriter();
          out.println(json2);
        }
}