Java Jersey没有看到我的MessageBodyReader
我试图将jersey与我自己的json MessageBodyReader/MessageBodyWriter一起使用(因为我没有在我的域类上使用@XmlRootElement…注释) 我得到的错误如下所示:Java Jersey没有看到我的MessageBodyReader,java,jersey,jax-rs,Java,Jersey,Jax Rs,我试图将jersey与我自己的json MessageBodyReader/MessageBodyWriter一起使用(因为我没有在我的域类上使用@XmlRootElement…注释) 我得到的错误如下所示: A message body reader for Java class test.Greeting, and Java type class test.Greeting, and MIME media type application/json was not found 我想知道编写
A message body reader for Java class test.Greeting, and Java type class test.Greeting, and MIME media type application/json was not found
我想知道编写自己的MessageBodyReader需要什么魔法?我不确定这是否是您的情况,但常见的错误是
isReadable
方法的实现不正确
你实施了吗?调试时,您是否在此停止?
它返回真值吗?过了一会儿,我找到了问题的根本原因。我对MessageBodyReader/Writer的实现还可以(我认为它可以与RESTlet配合使用),但是如果您使用JerseyTest,请不要忘记将MessageBodyReader/Writer添加到它的ClientConfig中:
/**
* Creates custom REST client config which is mandatory since we don't use any JSON providers.
* @return Jersey Client Config with the required classes to read/write in(out)coming data.
*/
private static ClientConfig createClientConfig() {
final ClientConfig config = new DefaultClientConfig();
config.getClasses().add(GsonMessageBodyHandler.class);
config.getClasses().add(GsonAwareContextResolver.class);
return config;
}
/**
* Public ctor
* @throws com.sun.jersey.test.framework.spi.container.TestContainerException On error
*/
public MyRestExposureTest() throws TestContainerException {
super(new WebAppDescriptor.Builder("my.rest.package")
.clientConfig(createClientConfig())
.contextPath("/")
.build());
}
否则,您的客户端代码将无法读取/写入POJO。这就是我正在使用的,它正在工作(目前使用Jersey 1.8)
在尝试了Alex的解决方案后,这终于对我起了作用:
public IntegrationTest() throws TestContainerException {
super(new LowLevelAppDescriptor.Builder(createResourceConfig())
.build());
}
private static ResourceConfig createResourceConfig() {
ResourceConfig rc = new PackagesResourceConfig("com.github.joschi.jersey.security.smime");
rc.getSingletons().add(new EnvelopedWriter());
rc.getSingletons().add(new SignedWriter());
return rc;
}
我使用的是jersey 1.17,但这对我不起作用。永远不会计算客户端配置。
/**
* Creates custom REST client config which is mandatory since we don't use any JSON providers.
* @return Jersey Client Config with the required classes to read/write in(out)coming data.
*/
private static ClientConfig createClientConfig() {
final ClientConfig config = new DefaultClientConfig();
config.getClasses().add(GsonMessageBodyHandler.class);
config.getClasses().add(GsonAwareContextResolver.class);
return config;
}
/**
* Public ctor
* @throws com.sun.jersey.test.framework.spi.container.TestContainerException On error
*/
public MyRestExposureTest() throws TestContainerException {
super(new WebAppDescriptor.Builder("my.rest.package")
.clientConfig(createClientConfig())
.contextPath("/")
.build());
}
public static Client createMyClient() {
ClientConfig cc = new DefaultClientConfig();
cc.getClasses().add(MyProviderClass1.class);
cc.getClasses().add(MyProviderClass2.class);
cc.getClasses().add(MyProviderClass3.class);
return Client.create(cc);
}
public IntegrationTest() throws TestContainerException {
super(new LowLevelAppDescriptor.Builder(createResourceConfig())
.build());
}
private static ResourceConfig createResourceConfig() {
ResourceConfig rc = new PackagesResourceConfig("com.github.joschi.jersey.security.smime");
rc.getSingletons().add(new EnvelopedWriter());
rc.getSingletons().add(new SignedWriter());
return rc;
}