java后台api间的相互调用

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使用springboot写公司的项目，但是没有使用springcloud进行开发，有时候需要调用其他的java后台api进行数据获取，发现了很多问题，最后调试完毕，记录下，访问方式包含get与post，post访问时需要确定接收的控制层是以实体类型接收还是以字段类型接收，然后再params这个map中放入键值对数据，
map.put("paramType", "entity");放入这个键值对表示对方使用实体类型接收，如果不放入这个键值对，就是使用字段类型接收数据下面上代码package com.xzst.ewms.util;import net.sf.json.JSONObject;import java.io.*;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;import java.util.HashMap;import java.util.Map;/** * Created by RAZR on 2017/9/18. * post发送数据需要两种形式，如果接收的controller层使用实体接收，就需要进行以json格式发送， * 如果以单独字段进行接收，就需要进行键值对的形式发送 */public class ForwardRequest {    private static final String DEF_CHATSET = "UTF-8";    private static final int DEF_CONN_TIMEOUT = 60000;    private static final int DEF_READ_TIMEOUT = 60000;    private static String userAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";    /**     *     * @param strUrl  访问地址路径url     * @param params  提交的参数map集合     * @param method  访问方式GET或者POST     * @param token   权限验证，如果没有选择空即可     * @return     * @throws Exception     */    public static String net(String strUrl, Map params, String method,String token) throws Exception {        HttpURLConnection conn = null;        BufferedReader reader = null;        String rs = null;        try {            StringBuffer sb = new StringBuffer();            if (method == null || method.equals("GET")) {                strUrl = strUrl + "?" + urlencode(params);            }            URL url = new URL(strUrl);            conn = (HttpURLConnection) url.openConnection();            if (method == null || method.equals("GET")) {                conn.setRequestMethod("GET");            } else {                conn.setDoOutput(true);                conn.setRequestMethod("POST");                if ("entity".equals(params.get("paramType"))) {                    conn.setRequestProperty("Content-Type","application/json");                } else {                    conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");                }                conn.setRequestProperty("Content-Length","content.length");            }            conn.setRequestProperty("User-agent", userAgent);            conn.setRequestProperty("Authorization",token);            conn.setUseCaches(false);            conn.setConnectTimeout(DEF_CONN_TIMEOUT);            conn.setReadTimeout(DEF_READ_TIMEOUT);            conn.setInstanceFollowRedirects(false);            conn.connect();            if (params != null && method.equals("POST")) {                try {                    DataOutputStream out = new DataOutputStream(conn.getOutputStream());                    if ("entity".equals(params.get("paramType"))) {                        //如果接收参数为实体类型，就进行json转码然后发送                        out.writeBytes(GsonTool.toJson(params));                    } else {                        //如果接收的参数为几个字段类型，就是用键值对的形式进行urlencode进行编码发送                        out.writeBytes(urlencode(params));                    }                } catch (Exception e) {                    // TODO: handle exception                }            }            InputStream is = conn.getInputStream();            reader = new BufferedReader(new InputStreamReader(is, DEF_CHATSET));            String strRead = null;            while ((strRead = reader.readLine()) != null) {                sb.append(strRead);            }            rs = sb.toString();        } catch (IOException e) {            e.printStackTrace();        } finally {            if (reader != null) {                reader.close();            }            if (conn != null) {                conn.disconnect();            }        }        return rs;    }    //将map型转为请求参数型（get访问时使用）    public static String urlencode(Map<String, Object> data) {        StringBuilder sb = new StringBuilder();        for (Map.Entry i : data.entrySet()) {            try {                sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue() + "", "UTF-8")).append("&");            } catch (UnsupportedEncodingException e) {                e.printStackTrace();            }        }        return sb.toString();    }    public  static  String getPhoto64(String photoObjectInfo,String idCard){        JSONObject object = new JSONObject();        try {            object=JSONObject.fromObject(photoObjectInfo);            if(object.getInt("code")==0){                if (object.getJSONObject("obj").getJSONObject(idCard).size()!=0) {                    String res = object.getJSONObject("obj").getJSONObject(idCard).getString("url");                    return res;                }                else return null;        }            else {                return null;}        }        catch (Exception e) {                e.printStackTrace();                return null;            }        }public  static void main(String[] ags) throws Exception {    Map map = new HashMap();    map.put("kewWord", "440301198905147219");    map.put("tableId", "11");    System.out.println(net("http://10.4.106.24:8080/relation-web/visual/getFamilyRelationList",map,"POST","Bearer eyJhbGciOiJIUzUxMiJ9.eyJzdWIiOiIxMTAwMDAwMDAwMDE0OSIsImNyZWF0ZWQiOjE1MTAxOTUxMDk0ODIsImV4cCI6MTUxMDc5OTkwOX0.A7k7FVpbFc56RA6y_l3m3hDDmMseL6nct2jW79Q9YIrsG1CeiRV3opAw7iRVPx9JziALA4Rg9PTByN-NbU-Zeg"));}}
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