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[英]Jersey Error: MessageBodyReader not found for media type=application/json
[英]Gradle jar with jersey dependencies produces MessageBodyReader not found for media type=application/json
我編寫了一個與第三方服務進行通信的Jersey客戶端, 如果我從Eclipse運行它 , 它會起作用,但如果我運行jar文件,它會拋出MessageBodyProviderNotFoundException 。
我的build.gradle:
// Apply the java plugin to add support for Java
apply plugin: 'java'
version = '1.0'
// In this section you declare where to find the dependencies of your project
repositories {
jcenter()
}
//create a single Jar with all dependencies
task createJar(type: Jar) {
manifest {
attributes 'Implementation-Title': 'MeteorDesk Whatsapp Images Parser',
'Implementation-Version': version,
'Main-Class': 'controller.ImagesParser'
}
from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
with jar
}
// In this section you declare the dependencies for your production and test code
dependencies {
compile 'org.slf4j:slf4j-api:1.7.12'
compile 'org.glassfish.jersey.core:jersey-client:2.22.1'
compile 'org.glassfish.jersey.containers:jersey-container-servlet-core:2.22.1'
compile 'org.glassfish.jersey.media:jersey-media-json-jackson:2.22.1'
compile 'com.google.guava:guava:19.0'
compile 'joda-time:joda-time:2.4'
}
這是一個例外:
org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException: MessageBodyReader not found for media type=application/json, type=class model.login.LoginResult, genericType=class model.login.LoginResult.
at org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$TerminalReaderInterceptor.aroundReadFrom(ReaderInterceptorExecutor.java:231)
at org.glassfish.jersey.message.internal.ReaderInterceptorExecutor.proceed(ReaderInterceptorExecutor.java:155)
at org.glassfish.jersey.message.internal.MessageBodyFactory.readFrom(MessageBodyFactory.java:1085)
at org.glassfish.jersey.message.internal.InboundMessageContext.readEntity(InboundMessageContext.java:874)
at org.glassfish.jersey.message.internal.InboundMessageContext.readEntity(InboundMessageContext.java:808)
at org.glassfish.jersey.client.ClientResponse.readEntity(ClientResponse.java:326)
at org.glassfish.jersey.client.InboundJaxrsResponse$1.call(InboundJaxrsResponse.java:115)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:228)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:419)
at org.glassfish.jersey.client.InboundJaxrsResponse.runInScopeIfPossible(InboundJaxrsResponse.java:267)
at org.glassfish.jersey.client.InboundJaxrsResponse.readEntity(InboundJaxrsResponse.java:112)
at controller.MeteorDeskService.login(MeteorDeskService.java:42)
我從一個有完全相同問題的人那里讀到這篇文章 ,而他的解決方案是使用Maven,所以我也嘗試使用Maven,但我得到了同樣的例外。
我還可以在生成的jar中看到MessageBodyReader.class。
有沒有人知道為什么會發生這種情況?
正如@peeskillet建議的那樣,使用Maven Shade插件就可以了,這就是我添加到我的pom.xml中的內容:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>your main class here</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
對於在gradle中尋找解決方案的人,請使用Shadow插件 。 在build.gradle中添加以下行。
buildscript {
repositories {
maven {
url "https://plugins.gradle.org/m2/"
}
}
dependencies {
classpath "com.github.jengelman.gradle.plugins:shadow:1.2.4"
}
}
apply plugin: "com.github.johnrengelman.shadow"
shadowJar {
baseName = '__Title__'
mergeServiceFiles() //For Merging Service Descriptor Files
}
+1啤酒到@peeskillet。 與構建陰影jar的JMH性能基准的maven構建存在相同的問題。 這是pom.xml的相關部分:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.2</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<finalName>${uberjar.name}</finalName>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.openjdk.jmh.Main</mainClass>
</transformer>
</transformers>
<filters>
<filter>
<!-- Shading signed JARs will fail without this. http://stackoverflow.com/questions/999489/invalid-signature-file-when-attempting-to-run-a-jar -->
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</execution>
</executions>
</plugin>
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