ecliple-tomcat部署maven项目方式之三

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Eclipse创建Maven Web工程并实现Tomcat热部署

首先下载maven工具,解压后在conf/settings.xml文件中添加:
<localRepository>E:/Workspaces/.m3</localRepository>
此为maven下载jar及其相关文件的仓库

第二步,安装eclipse的maven插件M2eclipse:
http://m2eclipse.sonatype.org/sites/m2e
安装完成后打开eclipse->window->preferences->maven
->installations->add->指定maven安装路径
->user settings->指定maven配置文件settings.xml

第三步,创建maven项目,properties->project facets->convert to faceted form...
勾上dynamic web module,点击futher configuration available..., 勾上generate web.xml deployment descriptor,更改webcontent目录为src/main/webapp后点击OK.此时点击项目properties->deployment assembly可以看到指定的webapp路径就是是src/main/webapp目录

第四步,修改项目pom.xml文件:

Xml代码  
...  
  
    <build>  
  
        <sourceDirectory>src/main/java</sourceDirectory>  
        <testSourceDirectory>src/test/java</testSourceDirectory>  
  
        <resources>  
            <resource>  
                <directory>src/main/resources</directory>  
            </resource>  
        </resources>  
        <testResources>  
            <testResource>  
                <directory>src/test/resources</directory>  
            </testResource>  
        </testResources>  
  
        <outputDirectory>src/main/webapp/WEB-INF/classes</outputDirectory>  
        <testOutputDirectory>src/main/webapp/WEB-INF/classes</testOutputDirectory>  
  
        <plugins>  
  
            <plugin>  
                <artifactId>maven-compiler-plugin</artifactId>  
                <version>2.3.2</version>  
                <configuration>  
                    <source>1.6</source>  
                    <target>1.6</target>  
                </configuration>  
            </plugin>  
  
            <plugin>  
                <artifactId>maven-resources-plugin</artifactId>  
                <version>2.5</version>  
                <executions>  
                    <execution>  
                        <phase>compile</phase>  
                    </execution>  
                </executions>  
            </plugin>  
  
            <plugin>  
                <artifactId>maven-dependency-plugin</artifactId>  
                <version>2.4</version>  
                <executions>  
                    <execution>  
                        <phase>compile</phase>  
                        <goals>  
                            <goal>copy-dependencies</goal>  
                        </goals>  
                        <configuration>  
                            <outputDirectory>src/main/webapp/WEB-INF/lib</outputDirectory>  
                        </configuration>  
                    </execution>  
                </executions>  
            </plugin>  
  
            <plugin>  
                <artifactId>maven-clean-plugin</artifactId>  
                <version>2.4.1</version>  
                <configuration>  
                    <filesets>  
                        <fileset>  
                            <directory>src/main/webapp/WEB-INF/lib</directory>  
                            <followSymlinks>false</followSymlinks>  
                        </fileset>  
                    </filesets>  
                </configuration>  
            </plugin>  
  
        </plugins>  
  
    </build>  

这样修改pom.xml后,删除target目录,在打开cmd:
在项目根路径下运行:
mvn eclipse:eclipse
这样重新生成的classpath会将编译好的java文件和resources中的配置文件指定为src/main/webapp/WEB-INF/classes.
再运行:
mvn compile
之后,mvn会自动编译java文件,copy resources中的文件,并放到classes路径下,并且将项目依赖的jar包copy到lib目录,至此完整的项目形成,全部文件都在webapp目录下.

最后一步,将项目发布到tomcat上:
点击eclipse中servers->new->server,全部finish以后双击该server,切换到modules窗口->点击add external module->
在document base中browse到项目webapp路径
在path中输入"/项目名称"
点击OK后配置全部完成,这样配置的好处不只是热部署,因为eclipse自动编译java文件经常出现问题,在这样的情况下随时可以在项目根路径下用mvn compile命令编译项目

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