javaweb如何调用webservice接口，java如何调用webservice

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importjava.io.InputStreamReader;

importjava.io.UnsupportedEncodingException;

importorg.apache.http.HttpHost;

importorg.apache.http.HttpResponse;

importorg.apache.http.HttpStatus;

importorg.apache.http.HttpVersion;

importorg.apache.http.ParseException;

importorg.apache.http.client.ClientProtocolException;

importorg.apache.http.client.HttpClient;

importorg.apache.http.client.entity.UrlEncodedFormEntity;

importorg.apache.http.client.methods.HttpGet;

importorg.apache.http.client.methods.HttpPost;

importorg.apache.http.client.params.CookiePolicy;

importorg.apache.http.client.params.HttpClientParams;

importorg.apache.http.conn.params.ConnRoutePNames;

importorg.apache.http.impl.client.DefaultHttpClient;

importorg.apache.http.message.BasicNameValuePair;

importorg.apache.http.params.BasicHttpParams;

importorg.apache.http.params.HttpConnectionParams;

importorg.apache.http.params.HttpParams;

importorg.apache.http.params.HttpProtocolParams;

importorg.apache.http.protocol.HTTP;

privatestaticfinalStringUTF_8="UTF-8";

privatestaticfinalStringTAG="HttpClients";

privatestaticStringproxyHost="";

privatestaticintproxyPort=80;

privatestaticbooleanuseProxy=false;

privatestaticfinalintTIMEOUT_CONNECTION=60000;

privatestaticfinalintTIMEOUT_SOCKET=60000;

privatestaticfinalintRETRY_TIME=3;

publicStringdoHtmlPost(HttpClienthttpClient,HttpPosthttpPost)

HttpResponsehttpResponse=httpClient.execute(httpPost);

HeaderlastHeader=httpResponse.getLastHeader("Set-Cookie");

httpPost.setHeader("cookie",lastHeader.getValue());

statusCode=httpResponse.getStatusLine().getStatusCode();

if(statusCode!=HttpStatus.SC_OK){

System.out.println("HTTP"+""+"HttpMethodfailed:"+httpResponse.getStatusLine());

InputStreamis=httpResponse.getEntity().getContent();

responseBody=getStreamAsString(is,HTTP.UTF_8);

//httpClient.getConnectionManager().shutdown();

publicstaticStringdoPost(Stringurl,StringrequestData)throwsException{

//设置HTTPPOST请求参数必须用NameValuePair对象

List<BasicNameValuePair>params=newArrayList<BasicNameValuePair>();

params.add(newBasicNameValuePair("param",requestData));

UrlEncodedFormEntityentity=newUrlEncodedFormEntity(params,HTTP.UTF_8);

HttpResponsehttpResponse=httpClient.execute(httpPost);

statusCode=httpResponse.getStatusLine().getStatusCode();

if(statusCode!=HttpStatus.SC_OK){

System.out.println("HTTP"+""+"HttpMethodfailed:"+httpResponse.getStatusLine());

InputStreamis=httpResponse.getEntity().getContent();

responseBody=getStreamAsString(is,HTTP.UTF_8);

}catch(UnsupportedEncodingExceptione){

}catch(InterruptedExceptione1){

//发生致命的异常，可能是协议不对或者返回的内容有问题

}catch(ClientProtocolExceptione){

}catch(InterruptedExceptione1){

//发生致命的异常，可能是协议不对或者返回的内容有问题

}catch(InterruptedExceptione1){

}catch(InterruptedExceptione1){

httpClient.getConnectionManager().shutdown();

privatestaticStringgetStreamAsString(InputStreamstream,Stringcharset)throwsIOException{

BufferedReaderreader=newBufferedReader(newInputStreamReader(stream,charset),8192);

StringWriterwriter=newStringWriter();

while((count=reader.read(chars))>0){

publicHttpClientgetHttpClient1(){

finalHttpParamshttpParams=newBasicHttpParams();

HttpHostproxy=newHttpHost(proxyHost,proxyPort,"http");

httpParams.setParameter(ConnRoutePNames.DEFAULT_PROXY,proxy);

HttpConnectionParams.setConnectionTimeout(httpParams,TIMEOUT_CONNECTION);

HttpConnectionParams.setSoTimeout(httpParams,TIMEOUT_SOCKET);

HttpClientParams.setRedirecting(httpParams,true);

finalStringuserAgent="Mozilla/5.0(Windows;U;WindowsNT6.1;zh-CN;rv:1.9.2.14)Gecko/20110218Firefox/3.6.14";

HttpProtocolParams.setUserAgent(httpParams,userAgent);

HttpProtocolParams.setVersion(httpParams,HttpVersion.HTTP_1_1);

HttpClientParams.setCookiePolicy(httpParams,CookiePolicy.RFC_2109);

HttpProtocolParams.setUseExpectContinue(httpParams,false);

HttpClientclient=newDefaultHttpClient(httpParams);

privatestaticHttpClientgetHttpClient(){

finalHttpParamshttpParams=newBasicHttpParams();

HttpHostproxy=newHttpHost(proxyHost,proxyPort,"http");

httpParams.setParameter(ConnRoutePNames.DEFAULT_PROXY,proxy);

HttpConnectionParams.setConnectionTimeout(httpParams,TIMEOUT_CONNECTION);

HttpConnectionParams.setSoTimeout(httpParams,TIMEOUT_SOCKET);

HttpClientParams.setRedirecting(httpParams,true);

finalStringuserAgent="Mozilla/5.0(Windows;U;WindowsNT6.1;zh-CN;rv:1.9.2.14)Gecko/20110218Firefox/3.6.14";

HttpProtocolParams.setUserAgent(httpParams,userAgent);

HttpProtocolParams.setVersion(httpParams,HttpVersion.HTTP_1_1);

HttpClientParams.setCookiePolicy(httpParams,CookiePolicy.BROWSER_COMPATIBILITY);

HttpProtocolParams.setUseExpectContinue(httpParams,false);

HttpClientclient=newDefaultHttpClient(httpParams);

publicstaticvoidshowResponse(Stringstr)throwsException{

Map<String,Object>map=(Map<String,Object>)gson.fromJson(str,Object.class);

Stringvalue=(String)map.get("data");

//StringdecodeValue=Des3Request.decode(value);

//System.out.println(decodeValue);

publicstaticStringdoGet(Stringurl)throwsException{

HttpResponsehttpResponse=httpClient.execute(httpGet);

statusCode=httpResponse.getStatusLine().getStatusCode();

if(statusCode!=HttpStatus.SC_OK){

System.out.println("HTTP"+""+"HttpMethodfailed:"+httpResponse.getStatusLine());

InputStreamis=httpResponse.getEntity().getContent();

responseBody=getStreamAsString(is,HTTP.UTF_8);

}catch(UnsupportedEncodingExceptione){

}catch(InterruptedExceptione1){

//发生致命的异常，可能是协议不对或者返回的内容有问题

}catch(ClientProtocolExceptione){

}catch(InterruptedExceptione1){

//发生致命的异常，可能是协议不对或者返回的内容有问题

}catch(InterruptedExceptione1){

}catch(InterruptedExceptione1){

httpClient.getConnectionManager().shutdown();

Java调用WebService可以直接使用Apache提供的axis.jar自己编写代码，或者利用Eclipse自动生成WebService Client代码，利用其中的Proxy类进行调用。理论上是一样的，只不过用Eclipse自动生成代码省事些。

import java.rmi.RemoteException;

import org.apache.axis.client.Call;

import org.apache.axis.client.Service;

import org.apache.axis.message.PrefixedQName;

import org.apache.axis.message.SOAPHeaderElement;

import com.cezanne.golden.user.Exception;

import com.cezanne.golden.user.UserManagerServiceProxy;

import javax.xml.namespace.QName;

import java.net.MalformedURLException;

import javax.xml.rpc.ServiceException;

import javax.xml.soap.SOAPException;

public static String getResult() throws ServiceException, MalformedURLException, RemoteException, SOAPException

String endpoint="WebService服务地址";

Service service= new Service();

//通过Service实例创建Call的实例

Call call=(Call) service.createCall();

//将Web Service的服务路径加入到call实例之中.

call.setTargetEndpointAddress( new java.net.URL(endpoint));//为Call设置服务的位置

//由于需要认证，故需要设置调用的SOAP头信息。

Name headerName= new PrefixedQName( new QName("发布的wsdl里的targetNamespace里的url","string_itemName"));

org.apache.axis.message.SOAPHeaderElement header= new SOAPHeaderElement(headerName);

header.addTextNode("blablabla");

// SOAPHeaderElement soapHeaderElement= new SOAPHeaderElement("发布的wsdl里的targetNamespace里的url","SoapHeader");

// soapHeaderElement.setNamespaceURI("发布的wsdl里的targetNamespace里的url");

// soapHeaderElement.addChildElement("string_itemName").setValue("blablabla");

// call.addHeader(soapHeaderElement);

org.apache.axis.description.OperationDesc oper;

org.apache.axis.description.ParameterDesc param;

oper= new org.apache.axis.description.OperationDesc();

param= new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("","arg0"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("www.w3.org/2001/XMLSchema","string"), java.lang.String.class, false, false);

param= new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("","arg1"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("www.w3.org/2001/XMLSchema","string"), java.lang.String.class, false, false);

param= new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("","arg2"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("www.w3.org/2001/XMLSchema","string"), java.lang.String.class, false, false);

oper.setReturnType(new javax.xml.namespace.QName("www.w3.org/2001/XMLSchema","string"));

oper.setReturnClass(java.lang.String.class);

oper.setReturnQName(new javax.xml.namespace.QName("","return"));

oper.setStyle(org.apache.axis.constants.Style.WRAPPED);

oper.setUse(org.apache.axis.constants.Use.LITERAL);

oper.addFault(new org.apache.axis.description.FaultDesc(

new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url","Exception"),

new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url","Exception"),

call.setOperationName(new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url","opName"));

String res=( String) call.invoke( new Object[]("arg0","arg1"));

System.out.println("===============");

public static void main(String[] args){

System.out.println(getResult());

} catch(MalformedURLException e){

2、利用Eclipse自动生成WebService client代码就容易多了：（由于还不会发图片，就用语言描述了，大家酬和看吧。。。）

首先，new project，选择other，在输入框中输入Web Service Client，选中搜索后的结果，点击Next，在Service definition中输入 WebService的发布地址，点击Finish

这样，WebService Client代码已经生成好了。

接下来写一个Test类，在main函数中输入如下代码：

String endpoint="服务器的WebService的地址";

YourWebServiceNameProxy umsp= new YourWebServiceNameProxy(endpoint);

String resultStr= umsp.opMethod("arg0","arg1");

System.out.println(resultStr);

System.out.println("RemoteException异常");

如果还有疑问的话还有视频，如果对你有帮助请采纳！

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