1:环境
eclipse indigo,
JDK1.6,
maven 3.2.1,
tomcat7.0.42
2:安装eclipse maven插件 m2eclipse
第一种方法:从网上下载m2eclipse ,这个网上有很多下载的地方。然后放到eclipse安装目录的plugins下。
第二种方法:打开eclipse->help->install new software。在work with后输入: http://download.eclipse.org/technology/m2e/releases 。如图:
3:下载maven和tomcat
上apache官网下载maven:http://maven.apache.org/download.cgi 。下载完成后解压即可。
上apache官网下载tomcat:http://tomcat.apache.org/ 。
4:eclipse配置maven
window-》prefrences-》maven-》user setting。如图
window-》prefrences-》maven-》installations。如图
5:配置tomcat和maven
进入tomcat_home/conf/tomcat_users.xml:修改如下:
< role rolename = "admin-gui" /> < role rolename = "admin-script" /> < role rolename = "manager-gui" /> < role rolename = "manager-script" /> < role rolename = "manager-jmx" /> < role rolename = "manager-status" /> < user username = "admin" password = "admin" roles = "manager-gui,manager-script,manager-jmx,manager-status,admin-script,admin-gui" />
进入maven_home/conf/settings.xml:修改如下:
< server > < id > tomcat </ id > < username > admin </ username > < password > admin </ password > </ server >
6:eclipse创建maven web项目
这个简单,new-》other-》maven project-》next。这里注意groupid选org.apache.maven.archetypes ,artifactid 选maven-archetype-webapp,然后next,输入我们自己的groupid(com.test),artifactid(transition),然后finish,OK。如图所示:
7:修改pom.xml
< 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.test </ groupId > < artifactId > transition </ artifactId > < packaging > war </ packaging > < version > 0.0.1 </ version > < name > transition Maven Webapp </ name > < url > http://maven.apache.org </ url > < repositories > < repository > < id > maven_remote_1 </ id > < url > http://mirrors.ibiblio.org/pub/mirrors/maven2/ </ url > </ repository > </ repositories > < dependencies > < dependency > < groupId > junit </ groupId > < artifactId > junit </ artifactId > < version > 3.8.1 </ version > < scope > test </ scope > </ dependency > </ dependencies > < build > < finalName > transition </ finalName > < plugins > < plugin > < groupId > org.codehaus.mojo </ groupId > < artifactId > tomcat-maven-plugin </ artifactId > < configuration > < warFile > target/transition.war </ warFile > < server > tomcat </ server > < url > http://localhost:8080/manager/text </ url > < path > /transition </ path > </ configuration > </ plugin > </ plugins > </ build > </ project >
8:运行maven项目
先进入tomcat目录启动tomcat,然后右键项目 run as-》run configrations:
Goals项输入:package tomcat:redeploy
Maven Runtime选择我们自己的maven。如图:
然后点Run,控制台显示如下:
[INFO] Processing war project [INFO] Copying webapp resources [E:\transition\src\main\webapp] [INFO] Webapp assembled in [3 msecs] [INFO] Building war: E:\transition\target\transition.war [INFO] WEB-INF\web.xml already added, skipping [INFO] [INFO] <<< tomcat-maven-plugin:1.1:redeploy (default-cli) @ transition <<< [INFO] [INFO] --- tomcat-maven-plugin:1.1:redeploy (default-cli) @ transition --- [INFO] Deploying war to http://localhost:8080/transition [INFO] OK - Undeployed application at context path /transition [INFO] OK - Deployed application at context path /transition [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.412 s [INFO] Finished at: 2014-03-13T11:43:42+08:00 [INFO] Final Memory: 6M/15M [INFO] ------------------------------------------------------------------------
这里省略很多控制台输出,出现BUILD SUCCESS 则说明部署成功,浏览器输入: http://localhost:8080/transition/ 。显示Hello world..
注意:这样成功之后项目会直接打成war包,部署到tomcat下,每次build不需要重启tomcat。这样致命的缺点就是,不能调试。如果需要调试且在eclipse中启动tomcat的话。会发现右键项目没有run as server,有两种方法解决:
第一种:这时需要把项目转变成dynamic web module。右键项目-》properties-》project facets,然后右边选中dynamic web module。之后就会出现run as server了.
第二种:右键项目,run/debug as configrations 如上第8步骤的图。不过Goals中天上【tomcat:run 】。然后run就OK了,注意这里不需要提前启动tomcat。