http协议get方式获取图片

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class GetImage {
    private static String PATH = "http://192.168.1.119:8080/ok/point_one.png";

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        savaDisk();
    }
    //存到本地
    public static void savaDisk(){
        InputStream in = getInputStream();
        FileOutputStream fos = null;
        byte[] data = new byte[1024];
        int len = 0;
        try {
            fos = new FileOutputStream("D:\\test.png");
            while((len = in.read(data))!=-1){
                fos.write(data, 0, len);
            }
            
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            if(in!=null){
                try {
                    in.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if(fos!=null){
                try {
                    fos.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                
            }
        }
    }
    
    public static InputStream getInputStream() {
        InputStream in = null;
        HttpURLConnection httpconn = null;
        try {
            // 声明url
            URL url = new URL(PATH);
            if (url != null) {
                // 建立客户端与服务器端链接
                httpconn = (HttpURLConnection) url.openConnection();
                // 设置网路超时时间,如果超过这个时间自动断开
                httpconn.setConnectTimeout(3000);
                // 打开输入流
                httpconn.setDoInput(true);
                // 设置请求方式
                httpconn.setRequestMethod("GET");
                // 获取响应的状态码
                int responseCode = httpconn.getResponseCode();
                // 判断是否是ok
                if (responseCode == 200) {
                    // 从服务器获得一个输入流
                    in = httpconn.getInputStream();

                }

            }

        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return in;
    }

}