使用Spring Boot在多模块项目中加载静态内容时出错

Question

我有一个带有Spring Boot和外部服务器Weblogic的多模块项目。这些是模块：

dao
服务
web
pom.xml（dao）。

这是数据库（存储库，实体）的工作

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>gov-multiple-modules</artifactId>
        <groupId>gov</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>


    <groupId>com.dao</groupId>
    <artifactId>dao</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <properties>
        <output.directory.jdbc.oracle>${project.basedir}/src/main/resources</output.directory.jdbc.oracle>
    </properties>

    <dependencies>

        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc</artifactId>
            <version>6</version>
            <scope>system</scope>
            <systemPath>${output.directory.jdbc.oracle}/lib/ojdbc6.jar</systemPath>
        </dependency>

    </dependencies>

    <build>
        <plugins>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <argLine>-Dfile.encoding=UTF8</argLine>
                </configuration>
            </plugin>

        </plugins>
    </build>

</project>

pom.xml（服务）

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>gov-multiple-modules</artifactId>
        <groupId>gov</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.service</groupId>
    <artifactId>service</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>com.dao</groupId>
            <artifactId>dao</artifactId>
            <version>${version.dao.module}</version>
        </dependency>


        <dependency>
            <groupId>org.mapstruct</groupId>
            <artifactId>mapstruct</artifactId>
            <version>${version.mapstruct}</version>
        </dependency>

    </dependencies>


    <build>
          <plugins>

              <plugin>
                  <groupId>org.apache.maven.plugins</groupId>
                  <artifactId>maven-surefire-plugin</artifactId>
                  <configuration>
                      <argLine>-Dfile.encoding=UTF8</argLine>
                  </configuration>
              </plugin>

            <plugin> 
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${version.apache.maven.plugins}</version>
                <groupId>org.apache.maven.plugins</groupId>

                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                    <annotationProcessorPaths>
                        <path>
                            <groupId>org.mapstruct</groupId>
                            <artifactId>mapstruct-processor</artifactId>
                            <version>${version.mapstruct}</version>
                        </path>
                    </annotationProcessorPaths>
                </configuration>
            </plugin>
        </plugins>
    </build>


</project>

pom.xml（web）
这是处理来自客户端（Contoroller和RestControllers）的请求的工作。

应用程序中有一个入口点。

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>gov-multiple-modules</artifactId>
        <groupId>gov</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.web</groupId>
    <artifactId>web</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>com.service</groupId>
            <artifactId>service</artifactId>
            <version>${version.service.module}</version>
        </dependency>
    </dependencies>

    <build>
        <finalName>weblogic-war-gov</finalName>
        <plugins>

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <argLine>-Dfile.encoding=UTF8</argLine>
                </configuration>
            </plugin>


            <plugin> <!--It is for convert beans-->
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${version.apache.maven.plugins}</version>
                <groupId>org.apache.maven.plugins</groupId>

                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                    <annotationProcessorPaths>
                        <path>
                            <groupId>org.mapstruct</groupId>
                            <artifactId>mapstruct-processor</artifactId>
                            <version>${version.mapstruct}</version>
                        </path>
                    </annotationProcessorPaths>
                </configuration>
            </plugin>

        </plugins>
    </build>

</project>

pom.xml（当前）

<?xml version="1.0" encoding="UTF-8"?>
<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
         https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <modules>
        <module>dao</module>
        <module>service</module>
        <module>web</module>
    </modules>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>gov</groupId>
    <artifactId>gov-multiple-modules</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>

    <name>gov-multiple-modules</name>
    <description>project with Spring Boot for multiple module applications</description>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <version.apache.maven.plugins>3.8.1</version.apache.maven.plugins>
        <version.mapstruct>1.3.0.Final</version.mapstruct>

        <version.apache.common.lang3>3.9</version.apache.common.lang3>
        <version.apache.commons.text>1.8</version.apache.commons.text>
        <version.apache.commons.beanutils>1.9.4</version.apache.commons.beanutils>
        <version.hibernate.validator>6.0.17.Final</version.hibernate.validator>
        <version.reflection>0.9.11</version.reflection>
        <version.dao.module>0.0.1-SNAPSHOT</version.dao.module>
        <version.service.module>0.0.1-SNAPSHOT</version.service.module>

    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

       <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!--This artifact need for testing that to find classes into classpath-->
        <dependency>
            <groupId>org.reflections</groupId>
            <artifactId>reflections</artifactId>
            <version>${version.reflection}</version>
            <scope>test</scope>
        </dependency>


        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>${version.apache.common.lang3}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-text</artifactId>
            <version>${version.apache.commons.text}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>${version.apache.commons.beanutils}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-validation</artifactId>
        </dependency>

    </dependencies>

</project>

入口点

@SpringBootConfiguration
@SpringBootApplication
@EnableJpaRepositories(basePackages = {"com.dao", "com.service"})
@EntityScan(basePackages = {"com.dao"})
@ComponentScan(basePackages = {"com.service", "com.dao", "com.web"})
public class WebSpringBootJarApplication
        extends SpringBootServletInitializer
        implements WebApplicationInitializer {

    private static final Logger LOGGER  = LoggerFactory.getLogger( WebSpringBootJarApplication.class );

    public static void main(String[] args) {
        SpringApplication.run(WebSpringBootJarApplication.class, args);
        LOGGER.info("Start an application...");
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        LOGGER.info("There is building the web application!");
        return builder.sources(WebSpringBootJarApplication.class);
    }
}

src / main / webapp / WEB-INF / weblogic.xml

<?xml version="1.0" encoding="UTF-8"?>
<wls:weblogic-web-app
        xmlns:wls="http://xmlns.oracle.com/weblogic/weblogic-web-app"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
        https://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd
        http://xmlns.oracle.com/weblogic/weblogic-web-app
        https://xmlns.oracle.com/weblogic/weblogic-web-app/1.9/weblogic-web-app.xsd">

    <wls:context-root>sun</wls:context-root>
</wls:weblogic-web-app>

运行后，我必须在页面上看到问候语。

com.web.controller.index.IndexController

@Controller
public class IndexController {

    @RequestMapping(value="/", method= RequestMethod.GET)
    public String index() {
        return "index";
    }
}

src / main / resources / templates / index.html

但是我得到一个错误。

http://localhost:7001/sun/

在浏览器中

错误500-内部服务器错误java.lang.NullPointerException，位于weblogic.servlet.internal.ServletResponseImpl.sendContentError（ServletResponseImpl.java:738）在weblogic.servlet.internal.ServletResponseImpl.sendError（ServletResponseImpl.java:796）在weblogic.servlet.internal.ServletResponseImpl.sendError（ServletResponseImpl.java:713）在org.springframework.boot.web.servlet.support.ErrorPageFilter $ ErrorWrapperResponse.sendErrorIfNecessary（ErrorPageFilter.java:349）在org.springframework.boot.web.servlet.support.ErrorPageFilter $ ErrorWrapperResponse.getWriter（ErrorPageFilter.java:363）在org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration $ StaticView.render（ErrorMvcAutoConfiguration.java:227）在org.springframework.web.servlet.DispatcherServlet.render（DispatcherServlet.java:1373）在org.springframework.web.servlet.DispatcherServlet.processDispatchResult（DispatcherServlet.java:1118）

在控制台IDE中

-“ [2020-03-11 08：53：30,118]神器网站：战争爆炸：神器成功部署[2020-03-11 08：53：30,119]神器网站：战争爆炸：部署花费了14,724毫秒--11-03-2020 08：53：30.612-INFO 17568 o.s.web.servlet.DispatcherServlet：初始化Servlet'dispatcherServlet'-“-11-03-2020 08：53：30.613 -DEBUG 17568o.s.web.servlet.DispatcherServlet：已检测到StandardServletMultipartResolver-“-11-03-202008：53：30.621 -DEBUG 17568 o.s.web.servlet.DispatcherServlet：enableLoggingRequestDetails ='false'：请求参数和标头将被屏蔽以防止不安全地记录潜在的敏感数据-“-11-03-2020 08：53：30.621-信息17568 o.s.web.servlet.DispatcherServlet：完成初始化8毫秒内-“ --- 11-03-2020 08：53：30.624 -DEBUG 17568o.s.web.servlet.DispatcherServlet：获取“ / sun /”，参数= {}-“-11-03-2020 08：53：30.628 -DEBUG 17568 s.w.s.m.m.a.RequestMappingHandlerMapping：映射到com.web.controller.index.IndexController＃index（）-“-11-03-202008：53：30.647 -DEBUG 17568 o.s.w.s.v.ContentNegotiatingViewResolver：指定的[text / html]已指定[text / html，image / gif，image / jpeg，/; q = .2]-“ --- 11-03-2020 08：53：30.647 -DEBUG 17568 o.s.web.servlet.view.JstlView：视图名称“索引”，模型{}-“ --- 11-03-2020 08：53：30.652 -DEBUG 17568o.s.web.servlet.view.JstlView：转发到[index]-“-11-03-2020 08：53：30.653 -DEBUG 17568 o.s.web.servlet.DispatcherServlet：GET的“ FORWARD”调度“ / sun / index”，参数= {}-“ --- 11-03-2020 08：53：30.656 -DEBUG 17568o.s.w.s.handler.SimpleUrlHandlerMapping：映射到ResourceHttpRequestHandler [“ classpath：/ META-INF / resources /”，“ classpath：/ resources /”，“ classpath：/ static /”，“ classpath：/ public /”，“ /”]-“ --- 11-03-2020 08：53：30.657 -DEBUG 17568o.s.w.s.r.ResourceHttpRequestHandler：找不到资源-“-11-03-2020 08：53：30.657 -DEBUG 17568 o.s.web.servlet.DispatcherServlet：从“ FORWARD”退出调度，状态404-“-11-03-2020 08：53：30.664 -DEBUG 17568o.s.web.servlet.DispatcherServlet：渲染视图错误[org.springframework.web.servlet.view.JstlView：名称为'index';网址[指数]]-java.lang.NullPointerException：weblogic.servlet.internal.ServletResponseImpl.sendContentError（ServletResponseImpl.java:738）为null〜[com.oracle.weblogic.servlet.jar：12.2.1.4]在weblogic.servlet.internal.ServletResponseImpl.sendError（ServletResponseImpl.java:796）〜[com.oracle.weblogic.servlet.jar：12.2.1.4]在weblogic.servlet.internal.ServletResponseImpl.sendError（ServletResponseImpl.java:713）〜[com.oracle.weblogic.servlet.jar：12.2.1.4]在org.springframework.boot.web.servlet.support.ErrorPageFilter $ ErrorWrapperResponse.sendErrorIfNecessary（ErrorPageFilter.java:349）〜[spring-boot-2.2.5.RELEASE.jar：2.2.5.RELEASE]在org.springframework.boot.web.servlet.support.ErrorPageFilter $ ErrorWrapperResponse.flushBuffer（ErrorPageFilter.java:343）〜[spring-boot-2.2.5.RELEASE.jar：2.2.5.RELEASE]在weblogic.servlet.internal.RequestDispatcherImpl.forward（RequestDispatcherImpl.java:336）〜[com.oracle.weblogic.servlet.jar：12.2.1.4]在org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel（InternalResourceView.java:171）〜[spring-webmvc-5.2.4.RELEASE.jar：5.2.4.RELEASE]在org.springframework.web.servlet.view.AbstractView.render（AbstractView.java:316）〜[spring-webmvc-5.2.4.RELEASE.jar：5.2.4.RELEASE]在org.springframework.web.servlet.DispatcherServlet.render（DispatcherServlet.java:1373）[spring-webmvc-5.2.4.RELEASE.jar：5.2.4.RELEASE]位于org.springframework.web.servlet.DispatcherServlet.processDispatchResult（DispatcherServlet.java:1118）[spring-webmvc-5.2.4.RELEASE.jar：5.2.4.RELEASE]位于org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:1057）[spring-webmvc-5.2.4.RELEASE.jar：5.2.4.RELEASE]位于org.springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:943）[spring-webmvc-5.2.4.RELEASE.jar：5.2.4.RELEASE]位于org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:1006）[spring-webmvc-5.2.4.RELEASE.jar：5.2.4.RELEASE]位于org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet.java:898）[spring-webmvc-5.2.4.RELEASE.jar：5.2.4.RELEASE]位于javax.servlet.http.HttpServlet.service（HttpServlet.java:687）[javax.servlet.javax.servlet-api.jar：3.1.0]在org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:883）[spring-webmvc-5.2.4.RELEASE.jar：5.2.4.RELEASE] ...
“ java.lang.NullPointerException：为nullweblogic.servlet.internal.ServletResponseImpl.sendContentError（ServletResponseImpl.java:738）在weblogic.servlet.internal.ServletResponseImpl.sendError（ServletResponseImpl.java:796）在weblogic.servlet.internal.ServletResponseImpl.sendError（ServletResponseImpl.java:713）在org.springframework.boot.web.servlet.support.ErrorPageFilter $ ErrorWrapperResponse.sendErrorIfNecessary（ErrorPageFilter.java:349）在org.springframework.boot.web.servlet.support.ErrorPageFilter $ ErrorWrapperResponse.flushBuffer（ErrorPageFilter.java:343）在weblogic.servlet.internal.RequestDispatcherImpl.forward（RequestDispatcherImpl.java:336）在org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel（InternalResourceView.java:171）...
--- 11-03-2020 08：53：30.666 -DEBUG 17568 o.s.web.servlet.DispatcherServlet：无法完成请求：java.lang.NullPointerException-“-11-03-202008：53：30.667-错误17568 o.s.b.w.servlet.support.ErrorPageFilter：由于异常[null]]，从请求[/]转发到错误页面
它起作用了，那么该应用程序不是多模块项目。

任何想法是什么错误？请。

我有一个带有Spring Boot和外部服务器Weblogic的多模块项目。这些是模块：dao服务Web pom.xml（dao）。它是使用数据库（存储库，实体）的工作

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