java - Soap 消息调用 Web 服务时的 NullPointer

Question

尝试使用 Spring Integration ws 来使用 Web 服务，在 Web 服务端我得到一个空指针，因为传递的对象似乎没有被编码或没有映射到 xml 中，下面是客户端调用服务的片段。

public class Main {

public static void main(String[] args) {
    ClassPathXmlApplicationContext context
            = new ClassPathXmlApplicationContext("springws.xml");
    MessageChannel channel = context.getBean("request", MessageChannel.class);

      String body = "<getPojo xmlns=\"http://johnson4u.com/\"><pojo>\n"
            + "    <pojoId>23</pojoId>\n"
            + "    <pojoName>dubic</pojoName>\n"
            + "</pojo></getPojo>";

    MessagingTemplate messagingTemplate = new MessagingTemplate();
    Message<?> message = messagingTemplate.sendAndReceive(
            channel, MessageBuilder.withPayload(body).build());

    System.out.println(message.getPayload());
}

WSDL 由 JAxWS 端点类生成

  package com.johnson4u;


  import javax.jws.WebService;
  import javax.jws.WebMethod;
  import javax.jws.WebParam;


@WebService(serviceName = "SpringService")
public class SpringService {


@WebMethod(operationName = "getPojo" )
public Pojo getPojo(@WebParam(Pojo pjRequest){
    //Null Pointer occurs here as pjRequest might not be mapped to xml

   System.out.println("Pojo name is "+pjRequest.getPojoName());

   return new Pojo(234,"IM new Pojo");
}

还有 POJO

  package com.johnson4u;


public class Pojo {

private int pojoId;
private String pojoName;

public Pojo(int pojoId, String pojoName) {
    this.pojoId = pojoId;
    this.pojoName = pojoName;
}


public int getPojoId() {
    return pojoId;
}

public void setPojoId(int pojoId) {
    this.pojoId = pojoId;
}

public String getPojoName() {
    return pojoName;
}

public void setPojoName(String pojoName) {
    this.pojoName = pojoName;
}

不幸的是，stackoverflow无法正确格式化wsdl，但是命名空间id基于包名称com.johnson4u，下面是spring-ws-context.xml

<int:channel   id="request" />      
<int:channel id="response" />

<ws:outbound-gateway  id="gateway"   
                      request-channel="request"   
                      uri="http://localhost:20151/SpringWs/SpringService?wsdl"/>

Answer 1

我相信字符串主体应该是

String body = "<ns:getPojo xmlns:ns=\"http://johnson4u.com/\"><pojo>\n"
            + "    <pojoId>23</pojoId>\n"
            + "    <pojoName>dubic</pojoName>\n"
            + "</pojo><ns:/getPojo>";

未包含命名空间符号“ns”