添加webservlet

src/com/hellogithub/dao/projectDao.java

@@ -155,8 +155,8 @@ public class projectDao {
         }
         return projectEntityList;
     }
-    //返回标签
-//    public List<> retLabelBy(String str) {
+//    //返回标签
+//    public List<> retAllLabelBy(String str) {
 //        List<projectEntity> projectEntityList;
 //        try {
 //            Connection conn = JdbcUtils.getConnection();

src/com/hellogithub/servlet/deleteAllLabelServlet.java

@@ -4,6 +4,7 @@ import com.alibaba.fastjson.JSONObject;
 import com.hellogithub.entity.userEntity;
 import com.hellogithub.service.UserService;
 import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
@@ -12,7 +13,7 @@ import jakarta.servlet.http.HttpSession;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.HashMap;
-
+@WebServlet("deleteAllLabel")
 public class deleteAllLabelServlet extends HttpServlet {
     private UserService userService = new UserService();
     @Override

src/com/hellogithub/servlet/deletelabelServlet.java

@@ -4,6 +4,7 @@ import com.alibaba.fastjson.JSONObject;
 import com.hellogithub.entity.userEntity;
 import com.hellogithub.service.UserService;
 import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
@@ -12,7 +13,7 @@ import jakarta.servlet.http.HttpSession;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.HashMap;
-
+@WebServlet("deletelabel")
 public class deletelabelServlet extends HttpServlet {
     private UserService userService = new UserService();
     @Override

src/com/hellogithub/servlet/selectByInputServlet.java

@@ -2,18 +2,21 @@ package com.hellogithub.servlet;
 
 import com.alibaba.fastjson.JSONObject;
 import com.hellogithub.entity.projectEntity;
+import com.hellogithub.entity.userEntity;
 import com.hellogithub.service.projectService;
 import jakarta.servlet.ServletConfig;
 import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
 
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.HashMap;
 import java.util.List;
-
+@WebServlet("selectByInput")
 public class selectByInputServlet extends HttpServlet {
     private com.hellogithub.service.projectService projectService=new projectService();
     @Override
@@ -42,6 +45,14 @@ public class selectByInputServlet extends HttpServlet {
         PrintWriter writer = resp.getWriter();
         String str = req.getParameter("xxxxx");
         List<projectEntity> projectEntityList = projectService.selectByInput(str);
+
+        HttpSession session = req.getSession();
+        userEntity userEntity= null;
+        userEntity=(userEntity)session.getAttribute("user");
+        if(userEntity == null)
+
+
+
         if(projectEntityList.size() == 0 ){
             setResultError("查询结果为空",writer);
         }

src/com/hellogithub/servlet/selectUserLabelServlet.java

@@ -3,12 +3,13 @@ package com.hellogithub.servlet;
 import com.alibaba.fastjson.JSONObject;
 import com.hellogithub.service.UserService;
 import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.*;
 
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.HashMap;
-
+@WebServlet("selectUserLabel")
 public class selectUserLabelServlet extends HttpServlet {
     private UserService userService = new UserService();
     @Override