这篇文章给大家分享的是有关软件使用Java客户端类调用C# WebService的内容。小编觉得挺实用的,因此分享给大家做个参考,一起跟随小编过来看看吧。
使用这个类不用安装任何第三方工具,因为采用http的方式发送xml文件,所以你只需要安装好JDK就可以了。执行此类还可以获得WebServices或xml rpc server返回的xml字符流,你可以根据返回的xml数据来进行其他程序处理。通过这种方式实现了Java平台和.NET平台的数据交换和Java客户端类调用C# WebService。
下面是满足Java客户端类调用的源代码SOAPClient4XG.java:
/** * SOAPClient4XG. Read the SOAP envelope file passed as the second * parameter, pass it to the SOAP endpoint passed as the first parameter, and * print out the SOAP envelope passed as a response. with help from Michael * Brennan 03/09/01 * * * @author Bob DuCharme * @version 1.1 * @param SOAPUrl URL of SOAP Endpoint to send request. * @param xmlFile2Send A file with an XML document of the request. * * 5/23/01 revision: SOAPAction added */ import java.io.*; import java.net.*; public class SOAPClient4XG { public static void main(String[] args) throws Exception { if (args.length < 2) { //小于 System.err.println("Usage: java SOAPClient4XG " + "http://soapURL soapEnvelopefile.xml" + " [SOAPAction]"); System.err.println("SOAPAction is optional."); System.exit(1); } String SOAPUrl = args[0]; String xmlFile2Send = args[1]; String SOAPAction = ""; if (args.length > 2) //大于 SOAPAction = args[2]; // Create the connection where we're going to send the file. URL url = new URL(SOAPUrl); URLConnection connection = url.openConnection(); HttpURLConnection httpConn = (HttpURLConnection) connection; // Open the input file. After we copy it to a byte array, we can see // how big it is so that we can set the HTTP Cotent-Length // property. (See complete e-mail below for more on this.) FileInputStream fin = new FileInputStream(xmlFile2Send); ByteArrayOutputStream bout = new ByteArrayOutputStream(); // Copy the SOAP file to the open connection. copy(fin,bout); fin.close(); byte[] b = bout.toByteArray(); // Set the appropriate HTTP parameters. httpConn.setRequestProperty( "Content-Length", String.valueOf( b.length ) ); httpConn.setRequestProperty("Content-Type"," text/xml; charset=utf-8"); httpConn.setRequestProperty("SOAPAction",SOAPAction); httpConn.setRequestMethod( "POST" ); httpConn.setDoOutput(true); httpConn.setDoInput(true); // Everything's set up; send the XML that was read in to b. OutputStream out = httpConn.getOutputStream(); out.write( b ); out.close(); // Read the response and write it to standard out. InputStreamReader isr = new InputStreamReader(httpConn.getInputStream()); BufferedReader in = new BufferedReader(isr); String inputLine; while ((inputLine = in.readLine()) != null) System.out.println(inputLine); in.close(); } // copy method from From E.R. Harold's book "Java I/O" public static void copy(InputStream in, OutputStream out) throws IOException { // do not allow other threads to read from the // input or write to the output while copying is // taking place synchronized (in) { synchronized (out) { byte[] buffer = new byte[256]; while (true) { int bytesRead = in.read(buffer); if (bytesRead == -1) break; out.write(buffer, 0, bytesRead); } } } } }
编译:javac SOAPClient4XG.java
运行的命令格式: java -classpath . SOAPClient4XG
http://localhost/BokeServices/Service1.asmx c:loginReq.xml
http://tempuri.org/UserLoginReq
不过先不要运行上面的命令,先介绍一下命令行的意思,http://localhost/BokeServices/Service1.asmx是C# WebService的地址;
c:loginReq..xml里的内容是Java客户端类调用WebService方法的xml文件, http://tempuri.org是WebService方法的命名空间,一定要有,否则调用失败,如果你在C# WebServices中使用了方法默认的命名空间的话,就使用http://tempuri.org,否则要与C#中定义的一致,UserLoginReq是C# WebServices的方法名。注意xml文件中的方法名和参数名是与C# WebServices的方法名、参数名是一一对应的(参数顺序是可以颠倒的)。
我先介绍一个简单的例子(c:loginReq.xml),这个xml文件调用了远程C# WebService的UserLoginReq方法,并带UserAcc(用户名)和UserPwd(口令)两个参数,调用成功后C#会自动返回一个xml格式的SOAP包。
〈?xml version="1.0" encoding="utf-8"?〉 〈soap:Envelope xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/ envelope/"〉 〈soap:Body〉 〈UserLoginReq xmlns="http://tempuri.org/"〉 〈UserAcc〉baozheng〈/UserAcc〉 〈UserPwd〉mypwd〈/UserPwd〉 〈/UserLoginReq〉 〈/soap:Body〉 〈/soap:Envelope〉
现在看一下C# WebServices的UserLoginReq的方法的定义:
public struct UserLoginResp { public string UserAcc; public int Result; } [WebMethod] public UserLoginResp UserLoginReq(string UserAcc, string UserPwd,int ReqFrom) { … }
注意结构UserLoginResp,C# WebServices返回SOAP信息时会自动将UserLoginResp结构转换成xml的格式。
用此类做xml rpc server 的客户端也很简单,下文是一个客户端rpc.xml文件,调用了xml rpc server 端实现的metaWeblog.deletePost方法。
〈?xml version="1.0" encoding="utf-8"?〉 〈methodCall〉 〈methodName〉metaWeblog.deletePost〈/methodName〉 〈params〉 〈param〉〈value〉appKeyValue〈/value〉〈/param〉 〈param〉〈value〉746〈/value〉〈/param〉 〈param〉〈value〉baozheng〈/value〉〈/param〉 〈param〉〈value〉Hello123〈/value〉〈/param〉 〈/params〉 〈/methodCall〉
调用命令的格式:
java -classpath %CLASSPATH%;. SOAPClient4XG.
http://192.168.25.97:8080/BokeeXmlRpc/xml-rpc rpc.xml
对比调用C# WebServices的命令行,可以看出调用xml rpc server的命令行少一个方法名参数。http://192.168.25.97:8080/BokeeXmlRpc/xml-rpc 是提供xml rpc 调用的server端servlet地址。
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原创文章,作者:奋斗,如若转载,请注明出处:https://blog.ytso.com/208643.html