MVC Demo

AndriiPiatakha · AndriiPiatakha · commit 9199542aad46 · 2022-04-24T23:33:19.000+03:00
diff --git a/online-store.core/src/main/java/com/itbulls/learnit/onlinestore/core/facades/UserFacade.java b/online-store.core/src/main/java/com/itbulls/learnit/onlinestore/core/facades/UserFacade.java
@@ -11,4 +11,6 @@ public interface UserFacade {
 	User getUserByEmail(String email);
 	
 	List<User> getUsers();
+
+	User getUserById(Integer userId);
 }
diff --git a/online-store.core/src/main/java/com/itbulls/learnit/onlinestore/core/facades/impl/DefaultUserFacade.java b/online-store.core/src/main/java/com/itbulls/learnit/onlinestore/core/facades/impl/DefaultUserFacade.java
@@ -45,4 +45,9 @@ public User getUserByEmail(String email) {
 	public List<User> getUsers() {
 		return userConverter.convertUserDtosToUsers(userDao.getUsers());
 	}
+
+	@Override
+	public User getUserById(Integer userId) {
+		return userConverter.convertUserDtoToUser(userDao.getUserById(userId));
+	}
 }
diff --git a/online-store.web/src/main/java/com/itbulls/learnit/onlinestore/web/Configurations.java b/online-store.web/src/main/java/com/itbulls/learnit/onlinestore/web/Configurations.java
@@ -0,0 +1,6 @@
+package com.itbulls.learnit.onlinestore.web;
+
+public interface Configurations {
+
+	String VIEWS_PATH_RESOLVER = "/WEB-INF/views/";
+}
diff --git a/online-store.web/src/main/java/com/itbulls/learnit/onlinestore/web/servlets/UserController.java b/online-store.web/src/main/java/com/itbulls/learnit/onlinestore/web/servlets/UserController.java
@@ -0,0 +1,33 @@
+package com.itbulls.learnit.onlinestore.web.servlets;
+
+import jakarta.servlet.http.HttpServlet;
+import java.io.IOException;
+
+import com.itbulls.learnit.onlinestore.core.facades.UserFacade;
+import com.itbulls.learnit.onlinestore.core.facades.impl.DefaultUserFacade;
+import com.itbulls.learnit.onlinestore.persistence.enteties.User;
+import com.itbulls.learnit.onlinestore.web.Configurations;
+
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+@WebServlet("/users")
+public class UserController extends HttpServlet {
+	
+	private UserFacade userFacade = DefaultUserFacade.getInstance();
+	
+	
+	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		String userIdString = request.getParameter("id");
+		if (userIdString != null && !userIdString.isBlank()) {
+			User user = userFacade.getUserById(Integer.valueOf(userIdString));
+			request.setAttribute("user", user);
+			request.getRequestDispatcher(Configurations.VIEWS_PATH_RESOLVER 
+					+ "generalUserInfo.jsp").forward(request, response);
+		}
+	}
+
+
+}
diff --git a/online-store.web/src/main/webapp/WEB-INF/views/generalUserInfo.jsp b/online-store.web/src/main/webapp/WEB-INF/views/generalUserInfo.jsp
@@ -0,0 +1,16 @@
+<%@ page language="java" contentType="text/html; charset=UTF-8"
+    pageEncoding="UTF-8"%>
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="UTF-8">
+<title>General User Info</title>
+</head>
+<body>
+
+<p>First Name: ${user.firstName}</p>
+<p>Last Name: ${user.lastName}</p>
+<p>Email: ${user.email}</p>
+
+</body>
+</html>

Original file line number	Diff line number	Diff line change
`@@ -11,4 +11,6 @@ public interface UserFacade {`
`11`	`11`	`User getUserByEmail(String email);`
`12`	`12`
`13`	`13`	`List<User> getUsers();`
	`14`	`+`
	`15`	`+ User getUserById(Integer userId);`
`14`	`16`	`}`
Original file line number	Diff line number	Diff line change
`@@ -45,4 +45,9 @@ public User getUserByEmail(String email) {`
`45`	`45`	`public List<User> getUsers() {`
`46`	`46`	`return userConverter.convertUserDtosToUsers(userDao.getUsers());`
`47`	`47`	`}`
	`48`	`+`
	`49`	`+ @Override`
	`50`	`+ public User getUserById(Integer userId) {`
	`51`	`+ return userConverter.convertUserDtoToUser(userDao.getUserById(userId));`
	`52`	`+ }`
`48`	`53`	`}`