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servlet+maven示例

    博客分类:
  • java
 
阅读更多

1、项目名称

restaurant

 

2、servlet部分

@WebServlet("/user")
public class UserServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	@Override
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {

	}

	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		PrintWriter out = response.getWriter();
		StringBuffer sb = new StringBuffer();
		sb.append("<html>");
		sb.append("<body>");
		sb.append("<h1 align=\"center\">User management</h1>");
		sb.append("</body>");
		sb.append("</html>");

		out.print(sb.toString());
		out.flush();
		out.close();
	}
}

 

3、web.xml部分

由于使用了annotation,因此不需要做任何修改。

 

4、pom部分

pom内容包括,servlet、mysql-driver、junit依赖。在开发阶段使用tomcat7做web服务器。

<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>org.resta</groupId>
	<artifactId>restaurant</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>restaurant Maven Webapp</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<maven.tomcat7.deloy.context>/restaurant</maven.tomcat7.deloy.context>
		<maven.tomcat7.deloy.url>http://localhost:8080/manager/text</maven.tomcat7.deloy.url>
		<maven.tomcat7.deloy.id>tomcat</maven.tomcat7.deloy.id>
		<maven.tomcat7.deloy.usr>admin</maven.tomcat7.deloy.usr>
		<maven.tomcat7.deloy.psw>admin</maven.tomcat7.deloy.psw>
	</properties>

	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>3.8.1</version>
			<scope>test</scope>
		</dependency>
		
		<!-- mysql driver -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.21</version>
		</dependency>

		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.1-b02</version>
			<type>jar</type>
			<scope>provided</scope>
		</dependency>
	</dependencies>

	<build>
		<finalName>restaurant</finalName>
		<pluginManagement>
			<plugins>
				<!-- Maven Tomcat7 Plugin -->
				<plugin>
					<groupId>org.apache.tomcat.maven</groupId>
					<artifactId>tomcat7-maven-plugin</artifactId>
					<version>2.1</version>
					<configuration>
						<url>${maven.tomcat7.deloy.url}</url>
						<server>${maven.tomcat7.deloy.id}</server>
						<username>${maven.tomcat7.deloy.usr}</username>
						<password>${maven.tomcat7.deloy.psw}</password>
						<path>${maven.tomcat7.deloy.context}</path>
					</configuration>
				</plugin>
			</plugins>

		</pluginManagement>
	</build>

</project>

 

5、运行

maven命令为:tomcat7:run

浏览器链接为:http://localhost:8080/restaurant/user

6、总结

这个servlet实例比较简单,甚至代码量也非常少。但是到了开发后期,在页面分发方面,会随着时间的推移,越发臃肿。

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