使用ajax和urlconnection方式调用webservice服务

时间：2022-01-13 15:36:41
<html>

    <head>

        <title>使用ajax方式调用webservice服务</title>

        <script>

            var xhr = new XMLHttpRequest();

            function sendAjax(){

                var url = "http://192.168.13.66:8080/hello";//webservice服务的地址

                var requestBody = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" ' + 'xmlns:q0="http://service.demo.cn/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" ' + 'xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">'+

                '<soapenv:Body><q0:sayHi> <arg0>xiaoming</arg0></q0:sayHi></soapenv:Body></soapenv:Envelope>';//构造请求体，符合soap协议规范

                //打开连接

                xhr.open("POST",url,true);

                //重新设置请求头

                xhr.setRequestHeader("content-type","text/xml;charset=UTF-8");

                //指定回调函数

                xhr.onreadystatechange = _back;

                //发送请求

                xhr.send(requestBody);

            }

            //定义回调函数

            function _back(){

                if(xhr.readyState == 4){

                    if(xhr.status == 200){

                        //获取服务器的响应数据

                        var ret = xhr.responseXML;

                        var ele = ret.getElementsByTagName("return")[0];

                        alert(ele.textContent);

                    }

                }

            }

        </script>

    </head>

    <body>

        <input type="button" value="使用ajax方式调用webservice服务" onclick="sendAjax();">

    </body>

</html>
requestBody 请求体，可以通过myeclipse自带插件，点击go以后，下边的请求体就是我们想要的格式。

二，使用urlconnection方式
package cn.demo.client.urlconnection;

import java.io.InputStream;

import java.net.HttpURLConnection;

import java.net.MalformedURLException;

import java.net.URL;

import java.net.URLConnection;

/**

 * 使用urlconnection方式调用webservice服务

 * @author zhaoqx

 *

 */

public class App {

    public static void main(String[] args) throws Exception {

        URL wsUrl = new URL("http://192.168.13.66:8080/hello");

        HttpURLConnection conn = (HttpURLConnection) wsUrl.openConnection();

        //构造请求体

        String requestBody = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" " +

                                "xmlns:q0=\"http://service.demo.cn/\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" "+

                                "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">"+

                                "<soapenv:Body><q0:sayHi><arg0>xiaoming</arg0></q0:sayHi></soapenv:Body></soapenv:Envelope>";

        //设置请求的参数

        conn.setDoInput(true);

        conn.setDoOutput(true);

        conn.setRequestMethod("POST");

        conn.setRequestProperty("content-type", "text/xml;charset=UTF-8");

        //向服务端写数据

        conn.getOutputStream().write(requestBody.getBytes());

        int responseCode = conn.getResponseCode();

        if(responseCode == 200){

            //使用输入流获取服务端响应数据

            InputStream in = conn.getInputStream();

            byte[] b = new byte[1024];

            int len = 0;

            StringBuffer sb = new StringBuffer();

            while((len = in.read(b)) != -1){

                String s = new String(b, 0, len,"UTF-8");

                sb.append(s);

            }

            System.out.println(sb.toString());

            in.close();

        }

    }

}

相关文章