Java SOAP POST调用返回带有垃圾字符的

Question

我正在通过POST方法发出SOAP请求，该方法在请求标头中添加了身份验证，并且请求有效负载作为XML字符串传递。

下面是参考代码：

package org.ecommerce.integration;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

import javax.net.ssl.HttpsURLConnection;

import org.apache.commons.io.IOUtils;

public class SoapRequestTest2 {
    public static void main(String args[]) throws MalformedURLException,
    IOException {

    //Code to make a webservice HTTP request
    String responseString = "";
    String outputString = "";
    String wsURL = "https://example.com:443/fscmService/ItemServiceV2";
    URL url = new URL(wsURL);
    URLConnection connection = url.openConnection();
    HttpsURLConnection httpConn = (HttpsURLConnection)connection;
    ByteArrayOutputStream bout = new ByteArrayOutputStream();
    String xmlInput =
            "<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"
                     +"<soap:Body>"
                     +"<ns1:findItem xmlns:ns1=\"http://xmlns.oracle.com/apps/scm/productModel/items/itemServiceV2/types/\">"
                     + "<ns1:findCriteria xmlns:ns2=\"http://xmlns.oracle.com/adf/svc/types/\">"
                     +"<ns2:fetchStart>0</ns2:fetchStart>"
                     +"<ns2:fetchSize>100</ns2:fetchSize>"
                     +"<ns2:filter>"
                     +"<ns2:conjunction></ns2:conjunction>"
                     +"<ns2:group>"
                     +"<ns2:conjunction></ns2:conjunction>"
                     +"<ns2:upperCaseCompare>false</ns2:upperCaseCompare>"
                     +"<ns2:item>"
                     +"<ns2:conjunction></ns2:conjunction>"
                     +"<ns2:upperCaseCompare>false</ns2:upperCaseCompare>"
                     +"<ns2:attribute>ItemNumber</ns2:attribute>"
                     +"<ns2:operator>=</ns2:operator>"
                     +"<ns2:value>Test MR Item</ns2:value>"
                     +"</ns2:item>"
                     +"</ns2:group>"
                     +"</ns2:filter>"
                     +"<ns2:excludeAttribute>false</ns2:excludeAttribute>"
                     +"</ns1:findCriteria>"
                     +" <ns1:findControl xmlns:ns2=\"http://xmlns.oracle.com/adf/svc/types/\">"
                    +"<ns2:retrieveAllTranslations>true</ns2:retrieveAllTranslations>"
                     +"</ns1:findControl>"
                     +"</ns1:findItem>"
                     +"</soap:Body>"
                    +"</soap:Envelope>";

    byte[] buffer = new byte[xmlInput.length()];
    buffer = xmlInput.getBytes();
    bout.write(buffer);
    byte[] b = bout.toByteArray();
    String SOAPAction =
    "http://example.com/apps/scm/productModel/items/itemServiceV2/findItem";
    // Set the appropriate HTTP parameters.
    httpConn.setRequestProperty("Content-Length",
    String.valueOf(b.length));
    httpConn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
    httpConn.setRequestProperty("Accept-Encoding", "gzip,deflate");
    httpConn.setRequestProperty("Authorization", "Basic [encoded_value]");
    httpConn.setRequestProperty("Host", "egvl-test.scm.us2.oraclecloud.com:443");
    httpConn.setRequestProperty("SOAPAction", SOAPAction);
    httpConn.setRequestMethod("POST");
    httpConn.setDoOutput(true);
    httpConn.setDoInput(true);
    OutputStream out = httpConn.getOutputStream();
    //Write the content of the request to the outputstream of the HTTP Connection.
    out.write(b);
    out.close();
    //Ready with sending the request.
    System.out.println(IOUtils.toString(httpConn.getInputStream()));
    //Read the response.
    InputStreamReader isr =
    new InputStreamReader(httpConn.getInputStream());
    BufferedReader in = new BufferedReader(isr);

    //Write the SOAP message response to a String.
    while ((responseString = in.readLine()) != null) {
//      System.out.println("new Line : "+in.readLine());
    outputString = outputString + responseString;
    }
    //Parse the String output to a org.w3c.dom.Document and be able to reach every node with the org.w3c.dom API.

    //Write the SOAP message formatted to the console.
//  System.out.println(outputString.toString());
    }


}

当我尝试在控制台中打印出结果时，它会显示垃圾字符。

请在下面的屏幕截图中找到

：

任何正确指出错误的方法都会有所帮助。

Answer 1

我建议改用SOAP库，但我想我不知道它们是否支持所需的身份验证方案。

因此，如果SOAP库不切实际，我建议使用HTTP客户端，例如Apache HttpClient。设置请求要容易得多，而且它知道可以解压缩大多数常见的压缩方案，而无需您自己做任何事情。

如果您仍然不想这样做，则问题在于发送的响应已压缩。

因此，您需要首先使用以下内容读取Content-Encoding响应标头

String compression = httpConn.getHeaderField("Content-Encoding");

然后根据压缩方法解压缩您正在读取的响应：

• 如果压缩为“放气”，则为InflaterInputStream
• GZIPInputStream，如果它是“ gzip”