这两天研究的课题就是HttpServer，这是java自带一个处理监听端口的服务端，也就说，有了这个，只要项目运行，那你的电脑就是一台服务器。通常情况下，都是在Linux系统上运行，当你的电脑装配了虚拟机，虚拟机装配了HttpServer，就可以模拟部署项目。

一 实现过程

import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
import org.apache.commons.io.IOUtils;


import java.io.*;
import java.net.InetSocketAddress;
import java.net.URLDecoder;
import java.text.SimpleDateFormat;
import java.util.*;


/**
 * Hello world!
 */
public class App {
    public final static String DATE_FORMAT_SECOND = "yyyyMMddHHmmss";
    public final static String path ="D:\\data\\";


    static class TestHandler implements HttpHandler {
        @Override
        public void handle(HttpExchange exchange) {
            System.out.println("start data deal");

            try {
                byte[] bytes = IOUtils.toByteArray(exchange.getRequestBody());
                ResultData resultData = getResult(bytes);
                System.out.println("len:" + resultData.getBytes().length);
                FileOutputStream fos = new FileOutputStream(new File(path+getImageName()+".jpg"));
                fos.write(resultData.getBytes());

                BufferedWriter writer = new BufferedWriter(new FileWriter(path+getImageName()+".txt"));
                writer.write(resultData.getJson().trim());
                writer.flush();
                writer.close();
                fos.close();
            } catch (Exception e) {
                e.printStackTrace();
                System.out.println("read data is error ");
            }
            System.out.println("main over");

        }
    }

    public static String getImageName() {
        Date date = new Date();
        SimpleDateFormat format = new SimpleDateFormat(DATE_FORMAT_SECOND);
        return format.format(date);
    }

    public static ResultData getResult(byte[] bytes) throws Exception {
        ResultData resultData = new ResultData();
        //获取字符串
        String s = new String(bytes, 0, bytes.length, "UTF-8");
        StringBuffer sb = new StringBuffer();
        sb.append(s);
        int jsonStart = sb.indexOf("Content-Disposition: form-data; name=\"attachValue\"");
        int jsonEnd = sb.indexOf("Content-Disposition: form-data; name=\"attachFile\"; filename=\"snap.jpg\"");
        String jsonString = sb.substring(jsonStart, jsonEnd);
        //数据进行处理 确保数据格式
        int kChangeIndex = jsonString.indexOf("------KchangFA37jNCchRYdSBZA");
        int len = ("Content-Disposition: form-data; name=\"attachValue\"").length() + 1;
        jsonString = jsonString.substring(len, kChangeIndex);
        resultData.setJson(jsonString);
        //获取image byte[]
        DataInputStream bis = new DataInputStream(new ByteArrayInputStream(bytes));
        while (true) {
            String str = bis.readLine();;
            if (str.contains("Content-Type")) {
                bis.readLine();
                break;
            }
        }
        int num;
        byte[] b = new byte[1024];
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        while ((num = bis.read(b)) != -1) {
            String sss = new String(b, 0, num);
            bos.write(b, 0, num);
            if (sss.contains("KchangFA37jNCchRYdSBZA")) {
                break;
            }
        }
        resultData.setBytes(bos.toByteArray());
        return resultData;
    }

    public static long bytesToLong(byte[] array) {

        return ((((long) array[0] & 0xff) << 56) | (((long) array[1] & 0xff) << 48) | (((long) array[2] & 0xff) << 40)
                | (((long) array[3] & 0xff) << 32) | (((long) array[4] & 0xff) << 24)
                | (((long) array[5] & 0xff) << 16) | (((long) array[6] & 0xff) << 8) | (((long) array[7] & 0xff) << 0));

    }

    public static Map<String, String> formData2Dic(String formData) {
        Map<String, String> result = new HashMap<>();
        if (formData == null || formData.trim().length() == 0) {
            return result;
        }
        final String[] items = formData.split("&");
        Arrays.stream(items).forEach(item -> {
            final String[] keyAndVal = item.split("=");
            if (keyAndVal.length == 2) {
                try {
                    final String key = URLDecoder.decode(keyAndVal[0], "utf8");
                    final String val = URLDecoder.decode(keyAndVal[1], "utf8");
                    result.put(key, val);
                } catch (UnsupportedEncodingException e) {
                }
            }
        });
        return result;
    }

    public static void main(String[] args) throws Exception {
        System.out.println("main start");
        HttpServer server = HttpServer.create(new InetSocketAddress(9300), 0);
        server.createContext("/config", new TestHandler());
        server.start();
    }

这是我的实现过程
localhost：9300/config
注意，具体什么的数据请求，可以自己测试自己模拟

源码

链接：https://pan.baidu.com/s/1iyIrECgWfaORMwpK2Q5FXQ
提取码：0r7y