第一种：利用pom.xml文件打包。

右键pom.xml文件，选择Debug as或Run as 都行。但需要选择Maven install  打包

 执行成功后，日志会打印出位置（看自己配置是否日志输出）。如果没有输出，在默认的C盘.m2文件夹中

第二种方式：右键项目。选择Debug as 或 Run as 。但是这个时候要选择 Debug configurations

先Browse Workspace  选择需要打包的项目 ，然后在Goals：中输入clean install  命令  Debug执行后，会在target目录下生成打的war包

第三种:直接右击项Export，然后选择WAR file　　( 推荐这种)

第四种；利用mvn package命令:(eclipse 中只用package就行 ，或者clean package  推荐这种)

mvn compile与mvn install、mvn deploy的区别

1. mvn compile，编译类文件
2. mvn install，包含mvn compile，mvn package，然后上传到本地仓库
3. mvn deploy,包含mvn install,然后，上传到私服

打出war包之后直接部署到tomcat即可运行。类似于普通项目的部署。

 第五种:利用maven的插件

pom.xml中:

            <!-- tomcat插件 -->
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <port>8http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</port>
                    <path>/SSM</path>
                </configuration>
            </plugin>

run as :

　　tomcat7:exec-war

　　或者

　　tomcat7:exec-war-only

第六种:使用maven的war命令:

　　war:exploded    直接将项目打包成war包解压后的目录结构，类似于将war打包并解压

或者:    war:war    直接将项目打成war包。

附一个完整的pom.xml文件:

<project xmlns="http://maven.apache.org/POM/4.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg" xmlns:xsi="http://www.w3.org/2http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpghttp://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg1/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg http://maven.apache.org/xsd/maven-4.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg.xsd">
    <modelVersion>4.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</modelVersion>
    <groupId>MavenDemo</groupId>
    <artifactId>MavenDemo</artifactId>
    <version>http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name />
    <description />

    <!-- 声明变量，下面用类似于el表达式提取 -->
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <struts.version>2.3.24.1</struts.version>
        <struts.javassist.version>3.12.1.GA</struts.javassist.version>
        <spring.version>4.2.4.RELEASE</spring.version>
        <mybatis.version>3.2.2</mybatis.version>
        <mybatis.spring.version>1.2.1</mybatis.spring.version>
        <mysql.version>5.1.37</mysql.version>
        <slf4j.version>1.7.5</slf4j.version>
        <aspectj.version>1.6.1http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</aspectj.version>
    </properties>
    <dependencies>

        <!-- struts2 依赖包 -->
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-core</artifactId>
            <version>${struts.version}</version>
        </dependency>
        <dependency>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>${struts.javassist.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-spring-plugin</artifactId>
            <version>${struts.version}</version>
        </dependency>

        <!-- spring 依赖包 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> 
            <version>${spring.version}</version> </dependency> -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-oxm</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- mybatis 依赖包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.2.2</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>${mybatis.spring.version}</version>
        </dependency>
        <!-- pageHelper -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.1.2</version>
        </dependency>
        <!-- myql 依赖包 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>

        <!-- aspectj 依赖包 -->

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>${aspectj.version}</version>
        </dependency>
        <!-- <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> 
            <version>${aspectj.version}</version> </dependency> -->
        <!-- slf4j 依赖包 -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <!-- 测试 -->
        <!-- <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> 
            <version>${junit.version}</version> </dependency> -->

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.9</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</version>
            <scope>provided</scope>
        </dependency>

        <!-- 数据库连接池 -->
        <dependency>
            <groupId>c3phttp://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</groupId>
            <artifactId>c3phttp://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</artifactId>
            <version>http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg.9.1.2</version>
        </dependency>


        <!-- 调试过程中自己加的包依赖包 -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>2.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg-rc1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg-rc1</version>
        </dependency>


        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.7</version>
        </dependency>
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-json-plugin</artifactId>
            <version>2.3.32</version>
        </dependency>

        <!-- jedis依赖 -->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.9.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-redis</artifactId>
            <version>1.8.7.RELEASE</version>
        </dependency>
        <!-- jackson -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.1.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.1.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.1.http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</version>
        </dependency>
    </dependencies>

    <build>
        <!-- 配置了很多插件 -->
        <plugins>

            <!-- 编译插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>

            <!-- tomcat插件 -->
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <port>8http://img.555519.xyz/uploads3/20220603/6f2be68354dbbdb3ec8749104de903a1.jpg</port>
                    <path>/SSM</path>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>