eclipse maven创建servlet3.0项目

1、打开Eclipse4.2，新建一个Maven项目

　　　　1）选择maven的archetype为maven-archetype-webapp

　　　　2）填写项目信息

 

　　2、完善项目目录结构

　　　　1）手工添加 src/main/java、src/test/java和src/test/resource 三个source folder，在项目上右键 New ---->Source Folder，输入folder name即可。

　　　　2）修改Source Folder的编译路径，进入Java Build Bath窗口，双击每个文件夹下的Output folder，指定路径。

　　　　　src/main/java和src/main/resource指定target/calsses，

　　　　　src/test/java和src/test/resource指定target/test-classes

　　　　　都选上选上Allow output folders for source folders.

 

　　3、把项目转为 Dynamic Web Module

　　　　1）在项目上点击右键，选择属性，然后选择Project facets，然后点击Convert to faceted form...

 

　　　  勾选Dynamic Web Module，选择3.0，表示支持servlet3.0

 

　　　  勾选Java，选择1.6或更高的jdk版本

　　　　然后再点击Further configuration available...，在弹出的窗口中Context directory输入：src/main/webapp

　　　　2）配置部署的程序Deployment Assembly，删掉test的那两项，test的程序发布的时候不需要，添加maven的依赖库，Eclipse发布的时候可以发布到lib目录中

　　　　3）删除jdk5,添加jdk6

　　4、pom.xml文件配置，添加Servlet3依赖、日志配置等

<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>cn.luxh.app</groupId> <artifactId>app</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>app Maven Webapp</name> <url>http://maven.apache.org</url> <!-- 属性配置 --> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <junit.version>4.10</junit.version> <logback.version>1.0.7</logback.version> <slf4j.version>1.7.2</slf4j.version> </properties> <!-- 依赖配置 --> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>${junit.version}</version> <scope>test</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1-b02</version> <type>jar</type> <scope>provided</scope> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-core</artifactId> <version>${logback.version}</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>${logback.version}</version> </dependency> </dependencies> <build> <finalName>demo</finalName> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.5.1</version> <configuration> <source>1.6</source> <target>1.6</target> </configuration> </plugin> </plugins> </build> </project>

 

　　5、logback.xml日志文件配置，该文件存放在src/main/resources/目录下

<?xml version="1.0" encoding="UTF-8"?> <configuration> <!-- 控制台输出 --> <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%date [%thread] %-5level %logger{80} - %msg%n</pattern> </encoder> </appender> <root level="INFO"> <appender-ref ref="stdout"/> </root> </configuration>

　　6、编写Servlet

　　　　1）写个编码过滤器

package cn.luxh.app.filter; import java.io.IOException; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.annotation.WebFilter; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Servlet Filter implementation class EncodingFilter */ @WebFilter("/EncodingFilter") public class EncodingFilter implements Filter { final static Logger LOG = LoggerFactory.getLogger(EncodingFilter.class); public void destroy() {
        LOG.info("销毁......");
    } public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        chain.doFilter(request, response);
    } public void init(FilterConfig fConfig) throws ServletException {
        LOG.info("初始化......");
    }

}

　　　　2）第一个Servlet

package cn.luxh.app.servlet; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Servlet implementation class FirstServlet */ @WebServlet("/FirstServlet") public class FirstServlet extends HttpServlet { final static Logger LOG = LoggerFactory.getLogger(FirstServlet.class); private static final long serialVersionUID = 6833688147345340845L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        LOG.info("hello");
        PrintWriter out = response.getWriter();
        out.print("first servlet");
        out.flush();
        out.close();
        
    }


}

 

　　　　3）web.xml不需要任何配置，用tomcat7发布，tomcat6不支持Servlet3。访问：http://localhost:8080/app/FirstServlet