Steps involved in Spring web MVC application development.
1) create new maven project, select maven-archetype-web.
2) add web server(tomcat).
3) add spring-webmvc and tomcat dependency in pom.xml.
4) create beans configured Java/xml file.
5) write
business logic inside src/main/java.
Java Program
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package com.smarttechguides;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class Bank {
@RequestMapping("/deposite")
public String depositeAmount() {
// write business logic for deposite amount
return "deposite";
}
@RequestMapping("/withdrawn")
public String withdrawAmount() {
// write business logic for withdrawn amount
return "withdraw";
}
}
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| package com.smarttechguides; | |
| import org.springframework.stereotype.Controller; | |
| import org.springframework.web.bind.annotation.RequestMapping; | |
| @Controller | |
| public class Bank { | |
| @RequestMapping("/deposite") | |
| public String depositeAmount() { | |
| // write business logic for deposite amount | |
| return "deposite"; | |
| } | |
| @RequestMapping("/withdrawn") | |
| public String withdrawAmount() { | |
| // write business logic for withdrawn amount | |
| return "withdraw"; | |
| } | |
| } |
pom.xml
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<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.smarttechguides</groupId>
<artifactId>02-sample</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>02-sample Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.13</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-catalina -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-catalina</artifactId>
<version>9.0.58</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>02-sample</finalName>
</build>
</project>
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| <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/maven-v4_0_0.xsd"> | |
| <modelVersion>4.0.0</modelVersion> | |
| <groupId>com.smarttechguides</groupId> | |
| <artifactId>02-sample</artifactId> | |
| <packaging>war</packaging> | |
| <version>0.0.1-SNAPSHOT</version> | |
| <name>02-sample Maven Webapp</name> | |
| <url>http://maven.apache.org</url> | |
| <dependencies> | |
| <dependency> | |
| <groupId>org.springframework</groupId> | |
| <artifactId>spring-webmvc</artifactId> | |
| <version>5.3.13</version> | |
| </dependency> | |
| <!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-catalina --> | |
| <dependency> | |
| <groupId>org.apache.tomcat</groupId> | |
| <artifactId>tomcat-catalina</artifactId> | |
| <version>9.0.58</version> | |
| </dependency> | |
| <dependency> | |
| <groupId>junit</groupId> | |
| <artifactId>junit</artifactId> | |
| <version>3.8.1</version> | |
| <scope>test</scope> | |
| </dependency> | |
| </dependencies> | |
| <build> | |
| <finalName>02-sample</finalName> | |
| </build> | |
| </project> |
web.xml
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<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
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| <!DOCTYPE web-app PUBLIC | |
| "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" | |
| "http://java.sun.com/dtd/web-app_2_3.dtd" > | |
| <web-app> | |
| <display-name>Archetype Created Web Application</display-name> | |
| <servlet> | |
| <servlet-name>spring</servlet-name> | |
| <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> | |
| </servlet> | |
| <servlet-mapping> | |
| <servlet-name>spring</servlet-name> | |
| <url-pattern>/</url-pattern> | |
| </servlet-mapping> | |
| </web-app> | |
spring-servlet.xml
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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd ">
<context:component-scan
base-package="com.smarttechguides"></context:component-scan>
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver" name="view">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
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| <?xml version="1.0" encoding="UTF-8"?> | |
| <beans xmlns="http://www.springframework.org/schema/beans" | |
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | |
| xmlns:context="http://www.springframework.org/schema/context" | |
| xsi:schemaLocation="http://www.springframework.org/schema/beans | |
| http://www.springframework.org/schema/beans/spring-beans.xsd | |
| http://www.springframework.org/schema/context | |
| http://www.springframework.org/schema/context/spring-context.xsd "> | |
| <context:component-scan | |
| base-package="com.smarttechguides"></context:component-scan> | |
| <bean | |
| class="org.springframework.web.servlet.view.InternalResourceViewResolver" name="view"> | |
| <property name="prefix" value="/WEB-INF/views/" /> | |
| <property name="suffix" value=".jsp" /> | |
| </bean> | |
| </beans> |
deposite.jsp
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<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<body>
<h2>amount deposited statement..!!</h2>
</body>
</html>
withdraw.jsp
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<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<body>
<h2>amount withdraw statement..!!</h2>
</body>
</html>
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| <%@ page language="java" contentType="text/html; charset=ISO-8859-1" | |
| pageEncoding="ISO-8859-1"%> | |
| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <h2>amount deposited statement..!!</h2> | |
| </body> | |
| </html> | |
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| <%@ page language="java" contentType="text/html; charset=ISO-8859-1" | |
| pageEncoding="ISO-8859-1"%> | |
| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <h2>amount withdraw statement..!!</h2> | |
| </body> | |
| </html> | |
project Structure
Note: spring
beans we can configure in 3 ways
1) xml
based configuration file
Configure <beans> inside beans.xml file
2) annotation-based
configuration
Configure
<context:annotation-config/> inside beans.xml file and use annotations
inside Java class.
3) Java
based configuration
Configurations
happen in Java file without xml file.
with the help of annotations like @configuration, @beans, @component, @service, @controller..etc.!
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