ADD file via upload

src/app/src/main/java/com/sbw/atrue/Order/Util/LoginServlet.java

@@ -0,0 +1,56 @@
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.HashMap;
+import java.util.Map;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import net.sf.json.JSONObject;
+ 
+
+public class LoginServlet extends HttpServlet {
+     @Override
+    protected void doPost(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+ 
+        // 设置响应内容类型  
+        response.setContentType("text/html;charset=utf-8");
+        request.setCharacterEncoding("utf-8");
+        response.setCharacterEncoding("utf-8");
+ 
+        try (PrintWriter out = response.getWriter()) {
+ 
+            //获得请求中传来的用户名和密码
+            String account = request.getParameter("account").trim();
+            String password = request.getParameter("password").trim();
+ 
+            //密码验证结果
+            Boolean verifyResult = verifyLogin(account, password);
+ 
+            Map<String, String> params = new HashMap<>();
+            JSONObject jsonObject = new JSONObject();
+ 
+            if (verifyResult) {
+                params.put("Result", "success");
+            } else {
+                params.put("Result", "failed");
+            }
+ 
+            jsonObject.put("params", params);
+            out.write(jsonObject.toString());
+        }
+    }
+ 
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+        doPost(request, response);
+    }
+    //验证用户名密码是否正确
+    private Boolean verifyLogin(String userName, String password) {
+        User user = UserDAO.queryUser(userName);
+        //账户密码验证
+        return null != user && password.equals(user.getPassword());
+    }
+}