Controller外部接口调用方式设计，sign签名规则

Controller外部接口调用方式设计，sign签名规则

//请求头

accept:*/*
connection:Keep-Alive
user-agent:My-test3
Accept-Charset:UTF-8
Content-Type:application/x-www-form-urlencoded

如果使用x-www-form-urlencoded 传参方式，则使用请求头：My-test1 & My-test2
如果使用json 传参方式，则使用请求头：My-test3

//接收源代码：

protected static ObjectMapper mapper = new ObjectMapper();

if ("My-test1".equals(userAgent) || "My-test2".equals(userAgent)) {//非json格式报文
                dataMap = this.parseFormParams(reqContent);
            } else {
                //json字符串的方式 转换为TreeMap
                dataMap = mapper.readValue(reqContent, TreeMap.class);
            }

//解析RUL形式的参数            
public static Map<String,Object> parseFormParams(String reqContent){//platenum=沪A00250&sign=1d1b3befd94733a943720f7d3c2fa4a3
        Map<String,Object> map = new TreeMap<>();
        StringTokenizer st = new StringTokenizer(reqContent,"&");
        while(st.hasMoreTokens()){
            String param = st.nextToken();
            int idx = param.indexOf("=");
            String key = param.substring(0,idx);
            String val = param.substring(idx+1);
            map.put(key, val);
        }
        return map;
    }

//签名规则：

StringBuffer sbff = new StringBuffer();
Map<String, Object> dataMap = new TreeMap<>();  //有序，必须有序，否则计算出来的md5 sign字符串不同，验签不通过。
dataMap.put("orderNo","1111222333");
dataMap.put("status","1");

for (Map.Entry<String, Object> m : dataMap.entrySet()) {
    sbff.append(m.getKey()).append(m.getValue());
}
String key = sbff.toString().toUpperCase() + "key字符串";            
String md5str = md5Encode(key);
System.out.println("md5str="+md5str);

package com.example.core.mydemo.java3;

import java.util.Map;
import java.util.StringTokenizer;
import java.util.TreeMap;

/**
 * {platenum=沪A00250, sign=1d1b3befd94733a943720f7d3c2fa4a3}
 * dataMap={orderNo=1111222333, status=1}
 * dataMap2={orderNo=2111222333, status=2}
 */
public class TreeMapTest {

    public static void main(String[] args) {
        String ss = "platenum=沪A00250&sign=1d1b3befd94733a943720f7d3c2fa4a3";
        System.out.println(parseFormParams(ss));


        Map<String, Object> dataMap = new TreeMap<>();  //有序
        dataMap.put("orderNo","1111222333");
        dataMap.put("status","1");

        Map<String, Object> dataMap2 = new TreeMap<>();  //有序
        dataMap2.put("status","2");
        dataMap2.put("orderNo","2111222333");

        System.out.println("dataMap="+dataMap);
        System.out.println("dataMap2="+dataMap2);

    }

    public static Map<String,Object> parseFormParams(String reqContent){//platenum=沪A00250&sign=1d1b3befd94733a943720f7d3c2fa4a3
        Map<String,Object> map = new TreeMap<>();
        StringTokenizer st = new StringTokenizer(reqContent,"&");
        while(st.hasMoreTokens()){
            String param = st.nextToken();
            int idx = param.indexOf("=");
            String key = param.substring(0,idx);
            String val = param.substring(idx+1);
            map.put(key, val);
        }
        return map;
    }

}