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Step05.md

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What You Will Learn during this Step:

  • You first GET Parameter.
  • Problem with using GET

Snippets

ModelMap model
model.put("name", name);
My First JSP!!! My name is ${name}

Files List

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>com.in28minutes.springboot.web</groupId>
	<artifactId>spring-boot-first-web-application</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>spring-boot-first-web-application</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.4.3.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		
		<dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <scope>provided</scope>
        </dependency>
		
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<scope>runtime</scope>
		</dependency>
		
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

src/main/java/com/in28minutes/springboot/web/controller/LoginController.java

package com.in28minutes.springboot.web.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
public class LoginController {
	
	//Model
	
	@RequestMapping("/login")
	public String loginMessage(@RequestParam String name, ModelMap model){
		model.put("name", name);
		return "login";
	}
}

src/main/java/com/in28minutes/springboot/web/SpringBootFirstWebApplication.java

package com.in28minutes.springboot.web;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SpringBootFirstWebApplication {

	public static void main(String[] args) {
		SpringApplication.run(SpringBootFirstWebApplication.class, args);
	}
}

src/main/resources/application.properties

spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp
logging.level.org.springframework.web=DEBUG

src/main/webapp/WEB-INF/jsp/login.jsp

<html>

<head>
<title>First Web Application</title>
</head>

<body>
My First JSP!! Welcome ${name}!
</body>

</html>

src/test/java/com/in28minutes/springboot/web/SpringBootFirstWebApplicationTests.java

package com.in28minutes.springboot.web;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringBootFirstWebApplicationTests {

	@Test
	public void contextLoads() {
	}

}

todo.txt

Spring Boot Starter Parent
Spring Boot Starter Web
@SpringBootApplication
Auto Configuration

Dispatcher Servlet

/login => "login"

"login" => src/main/webapp/WEB-INF/jsp/login.jsp 


Search for a view named "login"



/login => LoginController