Question

Intellij上的项目工作正常，在pom中定义了com.sun.jersey服务器，核心和json的依赖项。然后我创建了jar（为此我必须将META-INF / MANIFEST.MF从/ src / main / java移动到/ src / main / resources），这似乎没问题（在jar中嵌入的文件夹中）我可以在maven下找到所有正确的依赖项。然后我启动jar并正确启动...但是，在运行时，当程序试图从rest api获取json时，我收到以下错误：

May 10, 2018 9:33:25 AM com.sun.jersey.api.client.ClientResponse getEntity
GRAVE: A message body reader for Java class java.lang.String, and Java type class java.lang.String, and MIME media type application/json was not found
May 10, 2018 9:33:25 AM com.sun.jersey.api.client.ClientResponse getEntity
GRAVE: The registered message body readers compatible with the MIME media type are:
application/json ->
  com.sun.jersey.json.impl.provider.entity.JSONJAXBElementProvider$App
  com.sun.jersey.json.impl.provider.entity.JSONArrayProvider$App
  com.sun.jersey.json.impl.provider.entity.JSONObjectProvider$App
  com.sun.jersey.json.impl.provider.entity.JSONRootElementProvider$App
  com.sun.jersey.json.impl.provider.entity.JSONListElementProvider$App
*/* ->
  com.sun.jersey.json.impl.provider.entity.JSONJAXBElementProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONArrayProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONObjectProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONRootElementProvider$General
  com.sun.jersey.json.impl.provider.entity.JSONListElementProvider$General
  com.sun.jersey.json.impl.provider.entity.JacksonProviderProxy

com.sun.jersey.api.client.ClientHandlerException: A message body reader for Java class java.lang.String, and Java type class java.lang.String, and MIME media type application/json was not found
        at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java:630)
        at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java:586)
        at com.dataCollection.executor.Downloader.download(Downloader.java:49)
        at com.dataCollection.executor.Downloader.run(Downloader.java:34)
        at java.util.TimerThread.mainLoop(Unknown Source)
        at java.util.TimerThread.run(Unknown Source)

由于某种原因，它找不到媒体类型application / json。但是当我从Intellij启动主类时，它运行正常。

以下是程序调用远程服务的代码：

Client client = Client.create();
WebResource webResource = client.resource("https://...(correct address)...");
ClientResponse response = webResource.accept("application/json").get(ClientResponse.class);
String output = response.getEntity(String.class);
JSONObject jsonObject = new JSONObject(output);

这是pom：

<groupId>groupId</groupId>
<artifactId>CollectDataFromREST</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.1.1</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <minimizeJar>true</minimizeJar>
                        <createDependencyReducedPom>true</createDependencyReducedPom>
                        <dependencyReducedPomLocation>
                            ${java.io.tmpdir}/dependency-reduced-pom.xml
                        </dependencyReducedPomLocation>
                        <relocations>
                            <relocation>
                                <pattern>com.acme.coyote</pattern>
                                <shadedPattern>hidden.coyote</shadedPattern>
                            </relocation>
                        </relocations>
                        <transformers>
                            <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
                            <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                <mainClass>com.dataCollection.StartDataCollection</mainClass>
                            </transformer>
                        </transformers>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

<dependencies>
    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-client</artifactId>
        <version>1.19.4</version>
    </dependency>
    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-core</artifactId>
        <version>1.19.4</version>
    </dependency>
    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-json</artifactId>
        <version>1.19.4</version>
    </dependency>
</dependencies>

启动jar（maven编译）时出错，但在Intellij上运行简单就可以了

0 个答案: