springboot war 静态资源

1、为什么要用war包呢

     其实war包很不方便，特别是前后不分享部署的情况下，我公司的情况是要保证web服务的tomcat版本一致，方便tomcat统一优化配置

2、静态资源如按spring boot默认的，那会有classes中无法访问，404问题

下面开始前后端不分离的改造打成war包

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<groupId>com.xxx.xxx</groupId>
<artifactId>xxxx-xxx-xxxx-service</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>

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<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </exclusion>
        <!-- 移除嵌入式tomcat插件 -->
        <exclusion>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<!-- 增加servlet包 -->
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
</dependency>

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在Main方法的启动类平级增加Tomcat启动类，也可以写在Main方法的类中

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<!-- 资源文件管理插件 -->
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-resources-plugin</artifactId>
    <configuration>
        <encoding>UTF-8</encoding>
    </configuration>
    <executions>
        <execution>
            <id>copy-resource</id>
            <phase>compile</phase><!--在编译后就复制-->
            <goals>
                <goal>copy-resources</goal>
            </goals>
            <configuration>
                <outputDirectory>${basedir}/target/${project.build.finalName}</outputDirectory>
                <resources>
                    <resource>
                        <!-- 把静态文件从calsses中移出来 -->
                        <directory>src/main/resources/static/</directory>
                        <includes>
                            <include>**/**</include>
                        </includes>
                    </resource>
                </resources>
            </configuration>
        </execution>
    </executions>
</plugin>
<!--war包插件-->
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-war-plugin</artifactId>
    <version>2.5</version>
    <configuration>
        <!--如果项目中没有web.xml文件下构建war-->
        <failOnMissingWebXml>false</failOnMissingWebXml>
        <!--<webappDirectory>${project.build.directory}/${project.artifactId}</webappDirectory>
        <warName>/${project.artifactId}</warName>-->
    </configuration>
</plugin>

以上操作完成了war包

注意：打成war包之后，server.servlet.context-path,server.port失效

可能还有一种没那么多事的办法，具体没有尝试

（1）把静态文件从resource中移出来

（2） yml文件指定静态资源的目录

spring:
  #指定环境
  profiles:
    active: @package.environment@
  #打war时指定静态文件，没有效果
  resources:
    static-locations: /static/,/public/
  mvc:
    static-path-pattern: /**    #静态资源映射路径