Maven4Myeclipse10.7.1搭建SSH2-part1：创建MavenWeb

一、创建一个Web项目：

配置如图：

配置说明：

这个地方是选择以Myeclipse还是Maven的目录结构创建项目。本例我们选用Maven标准目录结构。

完成后，目录结构如下图：

接着把项目部署到tomcat上试运行一下。

控台会有这样的提示：

2013-4-7 15:48:22 org.apache.catalina.core.AprLifecycleListener init
信息: Loaded APR based Apache Tomcat Native library 1.1.27 using APR version 1.4.6.
2013-4-7 15:48:22 org.apache.catalina.core.AprLifecycleListener init
信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
2013-4-7 15:48:23 org.apache.catalina.core.AprLifecycleListener initializeSSL
信息: OpenSSL successfully initialized (OpenSSL 1.0.1d 5 Feb 2013)
2013-4-7 15:48:23 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["http-apr-8080"]
2013-4-7 15:48:23 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["ajp-apr-8009"]
2013-4-7 15:48:23 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1251 ms
2013-4-7 15:48:23 org.apache.catalina.core.StandardService startInternal
信息: Starting service Catalina
2013-4-7 15:48:23 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/7.0.39
2013-4-7 15:48:23 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:\Program Files Green\apache-tomcat-7.0.39\webapps\docs
2013-4-7 15:48:23 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:\Program Files Green\apache-tomcat-7.0.39\webapps\examples
2013-4-7 15:48:23 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2013-4-7 15:48:23 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2013-4-7 15:48:23 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@bc448b')
2013-4-7 15:48:23 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:\Program Files Green\apache-tomcat-7.0.39\webapps\host-manager
2013-4-7 15:48:23 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:\Program Files Green\apache-tomcat-7.0.39\webapps\manager
2013-4-7 15:48:23 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:\Program Files Green\apache-tomcat-7.0.39\webapps\MavenJspUnit
2013-4-7 15:48:24 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(D:\Program Files Green\apache-tomcat-7.0.39\webapps\MavenJspUnit\WEB-INF\lib\javax.servlet-3.0.1.jar) - jar not loaded. See Servle
t Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
2013-4-7 15:48:24 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:\Program Files Green\apache-tomcat-7.0.39\webapps\ROOT
2013-4-7 15:48:24 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-apr-8080"]
2013-4-7 15:48:25 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-apr-8009"]
2013-4-7 15:48:25 org.apache.catalina.startup.Catalina start
信息: Server startup in 1728 ms

 

重点：

validateJarFile(D:\Program Files Green\apache-tomcat-7.0.39\webapps\MavenJspUnit\WEB-INF\lib\javax.servlet-3.0.1.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class

红色字体提示javax.servlet-3.0.1.jar这个包没载入，网上找答案说是因为项目lib和tomcat的lib包重复了。

细看发现在创建Maven的Web项目时，Myeclipse自动在Maven的pom.xml导入了javax.servlet-3.0.1.jar，所以必须把项目lib里的这个包去掉。

在Maven我们只需打开pom.xml找的这段代码注释掉即可。

 

<!-- 
    <dependency>
      <groupId>org.glassfish</groupId>
      <artifactId>javax.servlet</artifactId>
      <version>3.0.1</version>
    </dependency>
 -->

 

保存文件，重部署后再次运行就可以了。