Question

我正在尝试打包使用Jersey的Spring Boot App。当在开发期间启动应用程序时，运行没有问题，当我使用

生成jar文件时会出现问题

mvnw package && java -jar target/gs-spring-boot-docker-0.1.0.jar

会产生以下错误。

创建名为'org.springframework.boot.autoconfigure.jersey.JerseyAutoConfiguration'的bean时出错：不满意依赖 ency通过构造函数参数1表示;嵌套异常是org.springframework.beans.factory.BeanCreationException：创建名为'jerseyConfig'的bean时出错在URL [jar：file：.. path / Backend / target / celulascontentas-2.0.jar！/ BOOT-INF / classes！/ tech / aabo / celulascontenta中定义 s / config / JerseyConfig.class]：bean的实例化失败;嵌套异常是org.springframework.beans.BeanInstantiationException：无法实例化[tech.aabo.ce lulascontentas.config.JerseyConfig]：构造函数抛出异常;嵌套异常是org.glassfish.jersey.server.internal.scanning.ResourceFinderException：java.io.File NotFoundException：.. path \ Backend \ target \ celulascontentas-2.0.jar！\ BOOT-INF \ classes（系统找不到路径s pecified）

My Jersey Config看起来像这样：

package tech.aabo.celulascontentas.config;

import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.server.ServerProperties;
import org.springframework.stereotype.Component;

import javax.ws.rs.ApplicationPath;

@Component
@ApplicationPath("/api")
public class JerseyConfig extends ResourceConfig {

    public JerseyConfig() {
        register(JacksonJaxbJsonProvider.class);
        packages("tech.aabo.celulascontentas.endpoint");
        property(ServerProperties.BV_SEND_ERROR_IN_RESPONSE, true);
    }
}

我的pom.xml看起来像：

<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>tech.aabo</groupId>
    <artifactId>celulascontentas</artifactId>
    <version>2.0</version>
    <packaging>jar</packaging>

    <name>celulascontentas</name>
    <description>API para celulas contentas</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <!-- Core -->

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

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

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

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

        <!-- DB -->

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

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <!-- Extra -->

        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>1.9.3</version>
        </dependency>

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.7</version>
        </dependency>

        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk</artifactId>
            <version>1.11.133</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <artifactId>maven-resources-plugin</artifactId>
                <executions>
                    <execution>
                        <id>copy-resources</id>
                        <phase>validate</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${basedir}/target/</outputDirectory>
                            <resources>
                                <resource>
                                    <directory>src/main/resources</directory>
                                    <filtering>true</filtering>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

我尝试了各种组合，但总是产生相同的错误。那些人现在如何解决它？

由于

Answer 1

<强> Jersey classpath scanning limitations

对可执行jar的布局的更改意味着限制 Jersey的类路径扫描现在也会影响可执行jar文件作为可执行的war文件。要解决这个问题，那就是你的课程希望被泽西岛扫描应该包装在罐子里并包括在内作为BOOT-INF / lib中的依赖项。然后应该使用Spring Boot启动程序配置为在启动时解压缩这些罐子，以便泽西岛可以扫描他们的内容。

这是一个已知问题，还有一个尚未合并的开放pull请求。我建议您参考issue，其中提到了一些解决方法。

解决方法很少

配置Boot的Maven插件以解压缩包含它的jar   封装



使用以下解决方法

jersey 1:

import java.util.Map;

import javax.annotation.PostConstruct;
import javax.ws.rs.Path;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Component;

import com.sun.jersey.api.core.DefaultResourceConfig;

@Component
public class RestApplication extends DefaultResourceConfig {

    private static final Logger log = LoggerFactory.getLogger(RestApplication.class);

    public RestApplication() {
        getFeatures().put("com.sun.jersey.api.json.POJOMappingFeature", true);
    }

    @Autowired
    ApplicationContext appCtx;

    @PostConstruct
    public void setup() {
        log.info("Rest classes found:");
        Map<String,Object> beans = appCtx.getBeansWithAnnotation(Path.class);
        for (Object o : beans.values()) {
            log.info(" -> " + o.getClass().getName());
            getSingletons().add(o);
        }
    }

}
and

    @Autowired
    RestApplication restApplication;

    @Bean
    public ServletRegistrationBean jersey() {
        ServletRegistrationBean bean = new ServletRegistrationBean();
        bean.setServlet(new ServletContainer(restApplication));
        bean.addInitParameter("com.sun.jersey.api.json.POJOMappingFeature", "true");
        bean.setUrlMappings(Arrays.asList("/rest/*"));
        return bean;
    }
jersery2:

import java.util.Map;

import javax.annotation.PostConstruct;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.Path;

import org.glassfish.jersey.server.ResourceConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Component;

import com.sun.jersey.api.core.ResourceConfig;

@Component
@ApplicationPath("/rest")
public class JerseyConfig extends ResourceConfig {

    private static final Logger log = LoggerFactory.getLogger(JerseyConfig.class);

    @Autowired
    ApplicationContext appCtx;

    @PostConstruct
    public void setup() {
        log.info("Rest classes found:");
        Map<String,Object> beans = appCtx.getBeansWithAnnotation(Path.class);
        for (Object o : beans.values()) {
            log.info(" -> " + o.getClass().getName());
            register(o);
        }
    }

}

Spring Boot和Jersey生成ClassNotFound

1 个答案: