[英]XML over HTTP with JMS and Spring
我有一个传统的HTTP服务器,我需要使用Java
(而非浏览器)通过HTTP request
( POST
)发送XML
文件,并且该服务器将在其HTTP response
使用另一个XML
进行HTTP response
。 它类似于Web服务,但是没有WSDL,我必须遵循现有的XML结构来构造要发送的XML。
我进行了研究,找到了一个符合我此处要求的示例。 该示例使用来自Apache Commons的HttpClient
。 (我发现了其他示例,但是它们使用java.net
网络包(例如URLConnection
),这很乏味,所以我不想使用它们。)
但是使用Spring
和JMS
也是我的要求。
我从Spring
的参考资料中知道,可以将HttpClient
, JMS
和Spring
结合HttpClient
。 我的问题是,如何?
请注意,使用HttpClient
NOT
我的要求。 如果您有更好的建议,欢迎您。
欣赏它。
供您参考,这是我一直在谈论的XML-over-HTTP示例:
/*
* $Header:
* $Revision$
* $Date$
* ====================================================================
*
* Copyright 2002-2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* [Additional notices, if required by prior licensing conditions]
*
*/
import java.io.File;
import java.io.FileInputStream;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.InputStreamRequestEntity;
import org.apache.commons.httpclient.methods.PostMethod;
/**
*
* This is a sample application that demonstrates
* how to use the Jakarta HttpClient API.
*
* This application sends an XML document
* to a remote web server using HTTP POST
*
* @author Sean C. Sullivan
* @author Ortwin Glück
* @author Oleg Kalnichevski
*/
public class PostXML {
/**
*
* Usage:
* java PostXML http://mywebserver:80/ c:\foo.xml
*
* @param args command line arguments
* Argument 0 is a URL to a web server
* Argument 1 is a local filename
*
*/
public static void main(String[] args) throws Exception {
if (args.length != 2) {
System.out.println(
"Usage: java -classpath <classpath> [-Dorg.apache.commons."+
"logging.simplelog.defaultlog=<loglevel>]" +
" PostXML <url> <filename>]");
System.out.println("<classpath> - must contain the "+
"commons-httpclient.jar and commons-logging.jar");
System.out.println("<loglevel> - one of error, "+
"warn, info, debug, trace");
System.out.println("<url> - the URL to post the file to");
System.out.println("<filename> - file to post to the URL");
System.out.println();
System.exit(1);
}
// Get target URL
String strURL = args[0];
// Get file to be posted
String strXMLFilename = args[1];
File input = new File(strXMLFilename);
// Prepare HTTP post
PostMethod post = new PostMethod(strURL);
// Request content will be retrieved directly
// from the input stream
// Per default, the request content needs to be buffered
// in order to determine its length.
// Request body buffering can be avoided when
// content length is explicitly specified
post.setRequestEntity(new InputStreamRequestEntity(
new FileInputStream(input), input.length()));
// Specify content type and encoding
// If content encoding is not explicitly specified
// ISO-8859-1 is assumed
post.setRequestHeader(
"Content-type", "text/xml; charset=ISO-8859-1");
// Get HTTP client
HttpClient httpclient = new HttpClient();
// Execute request
try {
int result = httpclient.executeMethod(post);
// Display status code
System.out.println("Response status code: " + result);
// Display response
System.out.println("Response body: ");
System.out.println(post.getResponseBodyAsString());
} finally {
// Release current connection to the connection pool
// once you are done
post.releaseConnection();
}
}
}
在这种情况下,无需JMS,它是为异步消息传递而不是请求响应而设计的。
您需要的是Spring的RestTemplate
。 它与HttpClient相似,但是如果您有模式,它将为您处理编组。
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