如何解决javax.ws.rs.ProcessingException:找不到类 com.example.demo.Greeting 的消息正文编写器,ContentType:*/*
我创建了如下的休息服务
@RestController
public class MyService {
@PostMapping("/greeting")
public Greeting greeting(Greeting greeting) {
return new Greeting("hello1 " + greeting.getName());
}
}
型号
public class Greeting {
private String name;
public Greeting(String name) {
this.name = name;
}
public Greeting() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override public String toString() {
return "Greeting{" +
",name='" + name + '\'' +
'}';
}
我正在使用基于 Apache CXF 代理的 Rest 客户端
客户端使用的依赖
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-client</artifactId>
<version>3.4.2</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxrs</artifactId>
<version>3.4.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-client</artifactId>
<version>3.4.2</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxrs</artifactId>
<version>3.4.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
客户端调用远程rest服务的接口
interface MyServiceIntf {
@POST()
Greeting greeting(Greeting greeting);
}
基于代理的 Rest 客户端
public static Greeting callRest() {
MyServiceIntf proxy = JAXRSClientFactory.create(
"http://localhost:8080/greeting",MyServiceIntf.class,Collections.singletonList(new JacksonJaxbJsonProvider())
);
WebClient.client(proxy).accept(MediaType.APPLICATION_JSON_TYPE);
Greeting greeting = new Greeting("Hi");
return proxy.greeting(greeting);
}
我使用此代理调用 Get 请求没有问题,但是当 post 服务接受自定义 java 模型作为输入时出现问题。我收到以下错误
Exception in thread "main" javax.ws.rs.ProcessingException: No message body writer has been found for class com.example.demo.Greeting,ContentType: */*
at org.apache.cxf.jaxrs.client.AbstractClient.reportMessageHandlerProblem(AbstractClient.java:846)
at org.apache.cxf.jaxrs.client.AbstractClient.writeBody(AbstractClient.java:532)
at org.apache.cxf.jaxrs.client.ClientProxyImpl$BodyWriter.doWriteBody(ClientProxyImpl.java:1102)
at org.apache.cxf.jaxrs.client.AbstractClient$AbstractBodyWriter.handleMessage(AbstractClient.java:1214)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
at org.apache.cxf.jaxrs.client.AbstractClient.doRunInterceptorChain(AbstractClient.java:703)
at org.apache.cxf.jaxrs.client.ClientProxyImpl.doChainedInvocation(ClientProxyImpl.java:897)
at org.apache.cxf.jaxrs.client.ClientProxyImpl.invoke(ClientProxyImpl.java:345)
at com.example.demo.$Proxy61.greeting(UnkNown Source)
at com.example.demo.DemoApplication.callRest(DemoApplication.java:29)
at com.example.demo.DemoApplication.main(DemoApplication.java:20)
我尝试了这里提到的多种方法cxf-no-message-body-writer
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