项目场景：记录一次调用wsdl的bug

`一次调用其他厂家的webservice服务接口报错

问题描述

通过soapui调用接口正常返回出参，但是用代码调用则报错：
通讯模块2:java.io.IOException: Server returned HTTP response code: 500 for URL: http://xxx.xx.com/xxxWebService.asmx
`
先上调用代码，此代码在其他项目中都正常使用

public static String sendWebservice(String paramXml) {
		logger.info("接口入参明细："+paramXml);
		URL wsUrl;
		String result = "";
		try {
			wsUrl = new URL(report_url);
			HttpURLConnection conn = (HttpURLConnection) wsUrl.openConnection();
			conn.setDoInput(true);
			conn.setDoOutput(true);
			conn.setRequestMethod("POST");
			conn.setRequestProperty("User-Agent", "Mozilla/4.0(compatible;MSIE5.5;Windows NT; DigExt)");
			conn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
			conn.setConnectTimeout(2000);
			conn.setReadTimeout(2000);
			OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream(), "utf-8");
			out.write(paramXml);
			out.flush();
			// 请求体
			InputStream is = conn.getInputStream();   
			InputStreamReader isr = new InputStreamReader(is,"utf-8");
			BufferedReader in = new BufferedReader(isr);
			String inputLine;
			while ((inputLine = in.readLine()) != null)
			{
				System.out.println(inputLine);
			}
			in.close();
			/*BufferedReader in = new BufferedReader(new InputStreamReader(
					conn.getInputStream(),"utf-8"));
			String line;

			while ((line = in.readLine()) != null) {
				result += line;
			}
			logger.info("接口出参："+result);
			out.close();
			conn.disconnect();
		} catch (MalformedURLException e) {
			// TODO Auto-generated catch block
			logger.info("通讯模块1:" + e);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			logger.info("通讯模块2:" + e.toString());
		}
		return StringEscapeUtils.unescapeXml(result);
	}

soapui调用正常，比较了入参，检查是否有空格以及特殊字符，都没有，编码问题也改了好几遍都没有解决

原因分析：

解决方案：

最后通过各种工具测试，发先apipost的请求头和soapui的请求头的
SOAPAction值有出入，apipost没有这个值，于是立刻补上，瞬间接口就可通了，然后就立刻在也把代码改了，也是可以了。

工具调用截图

在的上面的代码加上这个配置就解决了。

conn.setRequestProperty("SOAPAction", "http://tempuri.org/HIPMessageServer");