base64文件传输，Java 发送json数据接口

base64文件传输，Java 发送json数据接口

需求：接收方需要接收json格式的数据，如下图。

传输json数据格式：

话不多说，上代码：完成需求全代码如下：

package xxxxxxxxxx;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import java.lang.StringBuilder;
import java.io.BufferedReader;
import com.alibaba.fastjson.JSONObject;

public class Test2 {
	public static void main(String[] args) {
		String url = "http://xxxxxxxxxxxxxxx";  //备注：您请求对方接口的url地址
		
		Map map = new HashMap<>();
		map.put("packageName", "XXXXXXXXXX");
		map.put("packageCode", "PMJJ-XXX");
		map.put("aName", XXXXX");
		map.put("aCode", "123456789012345678");
		map.put("aMandator", "XXXX");
		map.put("packageType", "XXX");
		map.put("address", "XXXXXXXXXX");
		map.put("plotCode", "190101010100002,190101010100003");
		map.put("area", 5.96);
		map.put("areaUnit", "XX");
		map.put("lease", 1);
		map.put("leaseUnit", "XX");
		map.put("customType", "XXX");
		map.put("useDescribe", "XX");
		map.put("bName", "XX");
		map.put("bCode", "987654321098765432");
		map.put("finishPrice", 1000);
		map.put("noticeTime", "2020-05-21");
		String param = "";
		List

运行输出结果如下：

{"area":5.96,"areaUnit":"XX","address":"XXXXXXX","bName":"XX","aMandator":"XXXX","bCode":"987654321098765432","extraFile":[{"fileName":"xxxxxx.pdf","fileBase64":"此处输出是base64格式编码，由于过长，省略。"}],"packageType":"XXXX","customType":"XXX","finishPrice":1000,"packageCode":"PMJJ-XXXXX1","aName":"XXXXXX","leaseUnit":"XX","aCode":"123456789012345678","packageName":"XXXXXXXXXX","lease":1,"useDescribe":"XXXX","noticeTime":"2020-05-21","plotCode":"190101010100002,190101010100003"}

备注：
base64转码可参考链接：https://www.zhangxinxu.com/sp/base64.html。直接拖文件进去即可。
base64,后面的即是图片转码后值。