为什么这个简单的SOAP客户端不工作（org.apache.http）？ [英] Why is this simple SOAP client not working (org.apache.http)?

问题描述

我想将XML文件作为请求发送到SOAP服务器。
这是我的代码:(修改自使用org.apache.http发送带有SOAP操作的HTTP Post请求）

I want to send an XML file as a request to a SOAP server. Here is the code I have: (modified from Sending HTTP Post request with SOAP action using org.apache.http )

import org.apache.http.client.*;
import org.apache.http.client.methods.*;
import org.apache.http.impl.client.*;
import org.apache.http.entity.StringEntity;
import org.apache.http.protocol.HTTP;
import org.apache.http.HttpResponse;
import java.net.URI;

public static void req()   {
        try {
            HttpClient httpclient = new DefaultHttpClient();
            String body="xml here";
            String bodyLength=new Integer(body.length()).toString();

            URI uri=new URI("http://1.1.1.1:100/Service");
            HttpPost httpPost = new HttpPost(uri);
            httpPost.setHeader( "SOAPAction", "MonitoringService" );
            httpPost.setHeader("Content-Type", "text/xml;charset=UTF-8");


            StringEntity entity = new StringEntity(body, "text/xml",HTTP.DEFAULT_CONTENT_CHARSET);
            httpPost.setEntity(entity);

            RequestWrapper requestWrapper=new RequestWrapper(httpPost);
            requestWrapper.setMethod("POST");


            requestWrapper.setHeader("Content-Length",bodyLength);
            HttpResponse response = httpclient.execute(requestWrapper);
            System.out.println(response);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

在此之前我收到错误'http 500'（来自服务器的内部服务器错误）但现在我根本没有收到任何回复。我知道服务器工作正常，因为与其他客户端没有问题。

Before this I was getting error 'http 500' (internal server error) from the server , but now Im not getting any reply at all. I know that the server works right because with other clients there is no problem.

谢谢。

推荐答案

org.apache.http API不是感知SOAP / Web服务，因此您以非标准方式执行棘手的工作。代码不是非常友好的或灵活的，因为它不能自动将Java对象数据绑定（转换）成SOAP请求和SOAP响应。它有点冗长，调试和工作都很棘手，而且很脆弱 - 您是在处理完整的SOAP协议，包括故障处理等吗？

org.apache.http API is not SOAP/web service aware and so you're doing the tricky work in a non-standard way. The code is not very java-friendly or flexible, because it can't automatically "bind" (convert) java object data into the SOAP request and out of the SOAP response. It's a little lengthy, tricky to debug and get working, and brittle - are you handling the full SOAP protocol, including fault handling, etc?.

我可以建议使用JAX吗？ -WS标准，内置于JVM中：

Can I suggest using JAX-WS standard, which is built into the JVM:

1。将WSDL文件保存到本地磁盘

例如< app path> /META-INF/wsdl/abc.com/calculator/Calculator.wsdl

如果您没有WSDL，你可以输入浏览器&将结果页面保存到磁盘：

http://abc.com/calculator/Calculator?wsdl

2。使用wsimport命令将WSDL转换为java类文件

对于JDK，工具位于< jdkdir> \bin\wsimport.exe（或.sh）中。

对于应用服务器，将类似于< app_server_root> \bin \wsimport.exe（或.sh）

< filepath> \wsimport -keep -verbose< wsdlpath> \ Calcallator.wsdl

或者，如果您的WSDL可通过预先存在的网络服务获得

OR if your WSDL is available via a pre-existing webservice

< filepath> \wsimport -keep -verbose http://abc.com/calculator/Calculator?wsdl

（你也可以包括-p com.abc.calculator来设置生成的类的包）

(you can also include "-p com.abc.calculator" to set the package of generated classes)

生成如下文件 - 在java项目中包含这些源文件： / p>

Files like the following are generated - include these source files in your java project:

com\abc\calculator\ObjectFactory.java       
com\abc\calculator\package-info.java       
com\abc\calculator\Calculator.java       ............................name = `<wsdl:portType>` name attribute      
com\abc\calculator\CalculatorService.java     ................name = `<wsdl:service>` name attribute    
com\abc\calculator\CalculatorRequestType.java  .......name = schema type used in input message    
com\abc\calculator\CalculatorResultType.java ..........name = schema type used in output message

2。创建JAX-WS SOAP Web服务客户端

package com.abc.calculator.client;

import javax.xml.ws.WebServiceRef;
import com.abc.calculator.CalculatorService;
import com.abc.calculator.Calculator;

public class CalculatorClient {

    @WebServiceRef(wsdlLocation="META-INF/wsdl/abc.com/calculator/Calculator.wsdl")
    // or @WebServiceRef(wsdlLocation="http://abc.com/calculator/Calculator?wsdl")
    public static CalculatorService calculatorService;

    public CalculatorResponseType testCalculation() {
        try {
            CalculatorRequestType request = new CalculatorRequest();
            request.setSomeParameter("abc");
            request.setOtherParameter(3);
            Calculator calculator = calculatorService.getCalculatorPort();
            // automatically generate SOAP XML message, send via HTTP, 
            // receive & marshal response to java object 
            String response = calculator.doCalculation(response);
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
}

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