webservice
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ttpclient远程调用WebService示例（Eclipse+httpclient） 我们将Web Service发布在Tomcat或者其他应用服务器上后，有很多方法可以调用该Web Service，常用的有两种： 1、通过浏览器HTTP调用，返回规范的XML文件内容 2、通过客户端程序调用，返回结果可自定义格式 接下来，我利用Eclipse作为开发工具，演示一个Httpclient调用WebService的简单示例 第一种调用见我的另一篇博文：http://www.cnblogs.com/lanxuezaipiao/archive/2013/05/10/3071584.html 步骤如下： 准备工作：用到的jar包有： 下载链接（http://download.csdn.net/detail/lanxuezaipiao/5354480） 第一步：新建Java Project，项目名称为HttpCallWebService 第二步：将所需jar包导入到库中 第三步：编写调用class，这里有两种方式调用，即GET方式和POST方式，由于POST方式较安全，故这里采用POST方式调用；请求数据的构造也有两种方式：静态和动态构造，下面分别介绍这两种方式： 注：这里以E邮宝开放的webservice接口为例调用其中一个API函数，而E邮宝的webservice基于SOAP，故请求数据为SOAP格式，大家可根据自己情况进行修改 静态构造请求数据： 1 package com.http; 2 3 import java.io.ByteArrayInputStream; 4 import java.io.IOException; 5 import java.io.InputStream; 6 7 import org.apache.commons.httpclient.HttpClient; 8 import org.apache.commons.httpclient.HttpException; 9 import org.apache.commons.httpclient.methods.InputStreamRequestEntity;10 import org.apache.commons.httpclient.methods.PostMethod;11 import org.apache.commons.httpclient.methods.RequestEntity;12 13 public class StaticHttpclientCall {14 15 /**16 * @param args17 * @throws IOException18 * @throws HttpException19 */20 public static void main(String[] args) throws HttpException, IOException {21 // TODO Auto-generated method stub22 23 String soapRequestData = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"24 + "<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""25 + " xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\""26 + " xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">"27 + " <soap12:Body>"28 + " <GetAPACShippingPackage xmlns=\"http://shippingapi.ebay.cn/\">"29 + " <GetAPACShippingPackageRequest>"30 + " <TrackCode>123</TrackCode>"31 + " <Version>123</Version>"32 + " <APIDevUserID>123</APIDevUserID>"33 + " <APIPassword>123</APIPassword>"34 + " <APISellerUserID>123</APISellerUserID>"35 + " <MessageID>123</MessageID>"36 + " </GetAPACShippingPackageRequest>"37 + " </GetAPACShippingPackage>" + "</soap12:Body>"38 + " </soap12:Envelope>";39 40 System.out.println(soapRequestData);41 42 PostMethod postMethod = new PostMethod(43 "http://epacketws.pushauction.net/v3/orderservice.asmx?wsdl");44 45 // 然后把Soap请求数据添加到PostMethod中46 byte[] b = soapRequestData.getBytes("utf-8");47 InputStream is = new ByteArrayInputStream(b, 0, b.length);48 RequestEntity re = new InputStreamRequestEntity(is, b.length,49 "application/soap+xml; charset=utf-8");50 postMethod.setRequestEntity(re);51 52 // 最后生成一个HttpClient对象，并发出postMethod请求53 HttpClient httpClient = new HttpClient();54 int statusCode = httpClient.executeMethod(postMethod);55 if(statusCode == 200) {56 System.out.println("调用成功！");57 String soapResponseData = postMethod.getResponseBodyAsString();58 System.out.println(soapResponseData);59 }60 else {61 System.out.println("调用失败！错误码：" + statusCode);62 }63 64 }65 66 } 动态构造数据： 1 package com.http; 2 3 import java.io.ByteArrayInputStream; 4 import java.io.InputStream; 5 import java.util.HashMap; 6 import java.util.Map; 7 import java.util.Set; 8 9 import org.apache.commons.httpclient.HttpClient; 10 import org.apache.commons.httpclient.methods.InputStreamRequestEntity; 11 import org.apache.commons.httpclient.methods.PostMethod; 12 import org.apache.commons.httpclient.methods.RequestEntity; 13 14 // 动态构造调用串，灵活性更大 15 public class DynamicHttpclientCall { 16 17 private String namespace; 18 private String methodName; 19 private String wsdlLocation; 20 private String soapResponseData; 21 22 public DynamicHttpclientCall(String namespace, String methodName, 23 String wsdlLocation) { 24 25 this.namespace = namespace; 26 this.methodName = methodName; 27 this.wsdlLocation = wsdlLocation; 28 } 29 30 private int invoke(Map<String, String> patameterMap) throws Exception { 31 PostMethod postMethod = new PostMethod(wsdlLocation); 32 String soapRequestData = buildRequestData(patameterMap); 33 34 byte[] bytes = soapRequestData.getBytes("utf-8"); 35 InputStream inputStream = new ByteArrayInputStream(bytes, 0, 36 bytes.length); 37 RequestEntity requestEntity = new InputStreamRequestEntity(inputStream, 38 bytes.length, "application/soap+xml; charset=utf-8"); 39 postMethod.setRequestEntity(requestEntity); 40 41 HttpClient httpClient = new HttpClient(); 42 int statusCode = httpClient.executeMethod(postMethod); 43 soapResponseData = postMethod.getResponseBodyAsString(); 44 45 return statusCode; 46 } 47 48 private String buildRequestData(Map<String, String> patameterMap) { 49 StringBuffer soapRequestData = new StringBuffer(); 50 soapRequestData.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>"); 51 soapRequestData 52 .append("<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"" 53 + " xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"" 54 + " xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">"); 55 soapRequestData.append("<soap12:Body>"); 56 soapRequestData.append("<" + methodName + " xmlns=\"" + namespace 57 + "\">"); 58 soapRequestData.append("<" + methodName + "Request>"); 59 60 Set<String> nameSet = patameterMap.keySet(); 61 for (String name : nameSet) { 62 soapRequestData.append("<" + name + ">" + patameterMap.get(name) 63 + "</" + name + ">"); 64 } 65 66 soapRequestData.append("</" + methodName + "Request>"); 67 soapRequestData.append("</" + methodName + ">"); 68 soapRequestData.append("</soap12:Body>"); 69 soapRequestData.append("</soap12:Envelope>"); 70 71 return soapRequestData.toString(); 72 } 73 74 /** 75 * @param args 76 * @throws Exception 77 */ 78 public static void main(String[] args) throws Exception { 79 // TODO Auto-generated method stub 80 81 DynamicHttpclientCall dynamicHttpclientCall = new DynamicHttpclientCall( 82 "http://shippingapi.ebay.cn/", "GetAPACShippingPackage", 83 "http://epacketws.pushauction.net/v3/orderservice.asmx?wsdl"); 84 85 Map<String, String> patameterMap = new HashMap<String, String>(); 86 87 patameterMap.put("TrackCode", "123"); 88 patameterMap.put("Version", "123"); 89 patameterMap.put("APIDevUserID", "123"); 90 patameterMap.put("APIPassword", "123"); 91 patameterMap.put("APISellerUserID", "123"); 92 patameterMap.put("MessageID", "123"); 93 patameterMap.put("TrackCode", "123"); 94 95 String soapRequestData = dynamicHttpclientCall.buildRequestData(patameterMap); 96 System.out.println(soapRequestData); 97 98 int statusCode = dynamicHttpclientCall.invoke(patameterMap); 99 if(statusCode == 200) {100 System.out.println("调用成功！");101 System.out.println(dynamicHttpclientCall.soapResponseData);102 }103 else {104 System.out.println("调用失败！错误码：" + statusCode);105 }106 107 }108 109 }
