java 调用webservice

Java调用Web服务的常用方法有两种。方法一是使用Java自带的JAX-WS库来调用WebService，示例代码如下：

// 调用webservice服务方法1
@Test
public void method1() {
    // 创建webservice代理工厂
    JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
    // 设置远程访问服务地址
    factory.setAddress("http://localhost:8080/ws/?wsdl");
    // 设置接口类型
    factory.setServiceClass(TestService.class);
    // 生成代理对象
    TestService service = factory.create(TestService.class);
    // 远程访问服务端方法
    String word = service.getWord();
    System.out.println(word);
}

方法二是直接模拟HTTP请求调用WebService。这种方式在请求接口数量较少的情况下比较常用，具体代码如下：

// 调用webservice服务方法2: 模拟HTTP请求
@Test
public void method2() throws IOException {
    // 定义请求URL
    URL url = new URL("http://localhost:8080/ws/?wsdl");
    HttpURLConnection connection = null;
    connection = (HttpURLConnection) url.openConnection();
    connection.setDoInput(true);
    connection.setDoOutput(true);
    connection.setRequestMethod("POST");
    connection.setRequestProperty("content-type", "text/xml;charset=utf-8");
    String soapXML = "<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"><soap:Body><ns2:getWord xmlns:ns2=\"http://service.hotriver/\"/></soap:Body></soap:Envelope>";
    connection.getOutputStream().write(soapXML.getBytes());
    if (connection.getResponseCode() == 200) {
        Scanner scanner = new Scanner(connection.getInputStream());
        while (scanner.hasNext()) {
            System.out.println(scanner.nextLine());
        }
    }
}

以上是两种常用的Java调用WebService的方法。方法一使用JAX-WS库，方法二是直接模拟HTTP请求。具体选择哪种方法取决于具体的需求和情况。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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