对user有效值设置

src/com/hellogithub/dao/AdminDao.java

@@ -161,4 +161,17 @@ public class AdminDao {
         return num;
     }
 
+    public int updateisValid(int id,int isvalid)
+    {
+        int num ;
+        try {
+            Connection conn = JdbcUtils.getConnection();
+            QueryRunner runner = new QueryRunner();
+            String sql="UPDATE user SET isValid = ? WHERE userId = ?";
+            num = runner.update(conn, sql, isvalid,id);
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+        return num;
+    }
 }

src/com/hellogithub/service/AdminService.java

@@ -24,4 +24,6 @@ public class AdminService {
     public int adminRegister(String adminName,String pwd){
         return adminDao.adminRegister(adminName,pwd);
     }
+
+    public int updateisValid(int id,int isvalid) {return adminDao.updateisValid(id,isvalid);}
 }

src/com/hellogithub/servlet/systemAdmin/updateisValidServlet.java

@@ -0,0 +1,67 @@
+package com.hellogithub.servlet.systemAdmin;
+
+import com.alibaba.fastjson.JSONObject;
+import com.hellogithub.service.AdminService;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import javax.servlet.annotation.WebServlet;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.HashMap;
+
+@WebServlet("/updateisValid")
+public class updateisValidServlet extends HttpServlet{
+    private AdminService adminService=new AdminService();
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        doPost(req,resp);
+    }
+
+    @Override
+    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        resp.setCharacterEncoding("UTF-8");
+        resp.setContentType("text/html; charset=utf-8");
+        //        设置响应头允许ajax跨域访问
+        String curOrigin = req.getHeader("Origin");
+        resp.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin);
+        resp.setHeader("Access-Control-Allow-Credentials", "true");
+        resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD");
+        resp.setHeader("Access-Control-Max-Age", "3600");
+        resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
+        resp.setContentType("application/json;charset=UTF-8");
+
+        PrintWriter writer = resp.getWriter();
+        int id = Integer.parseInt(req.getParameter("userId"));
+        int isvalid = Integer.parseInt(req.getParameter("isValid"));
+        int num = adminService.updateisValid(id,isvalid);
+        if(num<=0){
+            setResultError("失败！", writer);
+            writer.close();
+            return;
+        }else{
+            setResultOK("成功！", writer);
+            writer.close();
+        }
+
+
+    }
+    public void setResult(Integer code, String msg, PrintWriter writer) {
+        HashMap<String, Object> result = new HashMap<>();
+        result.put("code", code);
+        result.put("msg", msg);
+        String jsonString = JSONObject.toJSONString(result);
+        writer.println(jsonString);
+        writer.close();
+    }
+
+    public void setResultError(String msg, PrintWriter writer) {
+        setResult(500, msg, writer);
+    }
+
+    public void setResultOK(String msg, PrintWriter writer) {
+        setResult(200, msg, writer);
+    }
+}