Java如何远程调用对方接口

/**
     * @Auther 	kezf
     * @Date 	2020/4/11
     * @param urlStr  	目标地址
     * @param json     	请求参数
     * @param charset  	编码
     * @return
     */
public static String doPost(String urlStr,String json,String charset) {
        String result = null;
        System.out.println("请求参数："+json);
        try {
            //获取目标地址
            URL url = new URL(urlStr);
            //创建连接
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            //设置向HttpURLConnection输出、输入（发送数据、接收数据），当请求为post时必须设置这两个参数
            connection.setDoOutput(true);        
            connection.setDoInput(true);
            //设置请求方式
            connection.setRequestMethod("POST");
            //设置是否开启缓存，post请求时，缓存必须关掉
            connection.setUseCaches(false);
            //设置连接是否自动处理重定向（setFollowRedirects：所用http连接；setInstanceFollowRedirects：本次连接）
            connection.setInstanceFollowRedirects(true);
            //设置提交内容类型
            connection.setRequestProperty("Content-Type","application/json");
            //开始连接
            connection.connect();
            //发送请求
            DataOutputStream out = new DataOutputStream(connection.getOutputStream());
            out.write(json.getBytes(charset));
            out.flush();
            out.close();
            //读取响应
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), charset));
            String lines;
            StringBuffer sb = new StringBuffer("");
            while ((lines = reader.readLine()) != null) {
                lines = new String(lines.getBytes());
                sb.append(lines);
            }
            result = sb.toString();
            System.out.println("请求返回结果："+result);
            reader.close();
            // 断开连接
            connection.disconnect();
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return result;
    }

public String signConfirm(TpgDsfxyxx dsfxyqdxx){
		String result=null;
		try {
		    //创建服务
			Service service = new Service();
			//创建Call对象
			Call call = (Call) service.createCall();
			//设置服务所在的地址
			call.setTargetEndpointAddress(StringUtil.getGzfconfigValueByName("dsfxy_qd_url"));
			//设置调用方法名
			call.setOperation("SignConfirm");
			//添加请求参数
			call.addParameter("xyh", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("sqh", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("yzm", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("sfywzl", XMLType.XSD_INTEGER, ParameterMode.IN);
			call.addParameter("jldxhh", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("jldxhm", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("zjlx", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("zjhm", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("dhhm", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("dz", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("fkryhdm", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("fkrkhh", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("fkrzh", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("fkrmc", XMLType.XSD_STRING, ParameterMode.IN);
			call.addParameter("fkrlx", XMLType.XSD_INTEGER, ParameterMode.IN);
			call.setReturnType(XMLType.XSD_STRING);
			System.out.println(dsfxyqdxx.toString());
			//调用服务
			result = (String) call.invoke(new Object[]{String.valueOf(dsfxyqdxx.getId()), dsfxyqdxx.getSqh(), dsfxyqdxx.getYzm(),
					dsfxyqdxx.getSfywzl(), dsfxyqdxx.getJldxhh(), dsfxyqdxx.getJldxhm(), dsfxyqdxx.getZjlx(),
					dsfxyqdxx.getZjhm(), dsfxyqdxx.getDhhm(), dsfxyqdxx.getDz(), dsfxyqdxx.getFkryhdm(),
					dsfxyqdxx.getFkrkhh(), dsfxyqdxx.getFkrzh(), dsfxyqdxx.getFkrmc(), dsfxyqdxx.getFkrlx()});
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
		System.out.println("signConfirm###:" + result);
		return result;
	}

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;

import com.alibaba.fastjson.JSONObject;

public class RemoteDemo {
	//远程调用接口
	/**
	 * 
	 * @param url：远程接口url
	 * @param timeout：连接超时时间
	 * @param object：如所需参数是json对象类型，先将参数封装成JSONObject类型
	 * @param method：发送方式：以post还是get
	 * @param contentType：指定HTTP的Content-Type类型
	 * @return	返回的是接口返回内容对应的json字符串
	 */
	public static String remoteJsonRequest(String url, int timeout, JSONObject object, String method, String contentType) {
        URL connect;
        StringBuffer data = new StringBuffer();
        try {
            connect = new URL(url);
            HttpURLConnection connection = (HttpURLConnection) connect.openConnection();
            connection.setRequestMethod(method);
            connection.setDoOutput(true);
            connection.setReadTimeout(timeout);
            connection.setRequestProperty("Content-Type", contentType);
            OutputStreamWriter paramout = new OutputStreamWriter(connection.getOutputStream(), "UTF-8");
            paramout.write(object.toString());
            paramout.flush();
            InputStream inputStream = connection.getInputStream();
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "UTF-8");
            BufferedReader reader = new BufferedReader(inputStreamReader);

            String line;
            while ((line = reader.readLine()) != null) {
                data.append(line);
            }
            paramout.close();
            reader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return data.toString();
    }
}

JSONObject obj = new JSONObject();
RemoteDemo.remoteJsonRequest("http://localhost:8080/xx/xx?k1=v1&k2=v2", 5000, obj,  "POST" ,"application/x-www-form-urlencoded");

JSONObject obj = new JSONObject();
obj.put("k1", "v1");
obj.put("k2", "v2");
RemoteDemo.remoteJsonRequest("http://localhost:8080/xx/xx", 5000, obj, "POST", "application/json");