NameValuePair方式傳參數(shù)
今天工作中聯(lián)調(diào)外部的一個(gè)接口用post方式傳輸，我按照文檔封裝參數(shù)成Jason字符串傳入判没，但是對(duì)方一直接受參數(shù)為空蜓萄，折騰了半天也沒找到問題。很苦惱澄峰，檢查代碼都沒有錯(cuò)誤嫉沽，可是為什么對(duì)方接受參數(shù)為空呢？然后找對(duì)方的技術(shù)人員聯(lián)調(diào)俏竞，看看是怎么回事绸硕，也折騰了半天最后發(fā)現(xiàn)對(duì)方是用NameValuePair方式傳參數(shù)堂竟。雖然這個(gè)方式已經(jīng)過時(shí)了，但是在這里記錄下玻佩，以備以后出現(xiàn)類似的方式傳參數(shù)出嘹。
NameValuePair是簡(jiǎn)單名稱值對(duì)節(jié)點(diǎn)類型。多用于Java像url發(fā)送Post請(qǐng)求咬崔。在發(fā)送post請(qǐng)求時(shí)用該list來(lái)存放參數(shù)税稼。
例如：
String url="訪問網(wǎng)址";
HttpPost httppost=new HttpPost(url); //建立HttpPost對(duì)象
//建立一個(gè)NameValuePair數(shù)組，用于存儲(chǔ)傳送的數(shù)據(jù)
List<NameValuePair> params=new ArrayList<NameValuePair>();
//添加參數(shù)
params.add(new BasicNameValuePair("鍵","值"));
//設(shè)置編碼
httppost.setEntity(new UrlEncodedFormEntity(params,HTTP.UTF_8));
//發(fā)送Post,并返回一個(gè)HttpResponse對(duì)象
HttpResponse response=new DefaultHttpClient().execute(httppost);
調(diào)用
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測(cè)試
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public static void main(String[] args) {
JSONObject object = new JSONObject();
object.put("account", "0571000448");
object.put("call", "0");
object.put("orderNo", "00000000");
object.put("prodCode", "700034");
System.out.println(object.toJSONString());
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
StringBuffer builder = new StringBuffer();
nameValuePairs.add(new BasicNameValuePair("data", object.toJSONString()));
builder.append("http://10.255.247.77:9094/tyEgral/front/call/saveOrder.do");
JSONObject result = HttpUtils.getJson(builder.toString(), nameValuePairs);
}
NameValuePair
package com.souche.lease.finance.product;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by hunt on 2017/6/26.
* 使用HttpClient發(fā)送請(qǐng)求垮斯、接收響應(yīng)很簡(jiǎn)單郎仆，一般需要如下幾步即可。
* 1. 創(chuàng)建HttpClient對(duì)象兜蠕。
* 2. 創(chuàng)建請(qǐng)求方法的實(shí)例扰肌，并指定請(qǐng)求URL。如果需要發(fā)送GET請(qǐng)求熊杨，創(chuàng)建HttpGet對(duì)象曙旭；如果需要發(fā)送POST請(qǐng)求，創(chuàng)建HttpPost對(duì)象猴凹。
* 3. 如果需要發(fā)送請(qǐng)求參數(shù)，可調(diào)用HttpGet岭皂、HttpPost共同的setParams(HttpParams params)方法來(lái)添加請(qǐng)求參數(shù)郊霎；對(duì)于HttpPost對(duì)象而言，也可調(diào)用setEntity(HttpEntity entity)方法來(lái)設(shè)置請(qǐng)求參數(shù)爷绘。
* 4. 調(diào)用HttpClient對(duì)象的execute(HttpUriRequest request)發(fā)送請(qǐng)求书劝，該方法返回一個(gè)HttpResponse。
* 5. 調(diào)用HttpResponse的getAllHeaders()土至、getHeaders(String name)等方法可獲取服務(wù)器的響應(yīng)頭购对；調(diào)用HttpResponse的getEntity()方法可獲取HttpEntity對(duì)象，該對(duì)象包裝了服務(wù)器的響應(yīng)內(nèi)容陶因。程序可通過該對(duì)象獲取服務(wù)器的響應(yīng)內(nèi)容骡苞。
* 6. 釋放連接。無(wú)論執(zhí)行方法是否成功楷扬，都必須釋放連接
*/
public class SDTestDemo {
public static void main(String[] args) {
String licenseNo = "浙A588AX";
String token = "7cc2bd72eb1e4522804dca3b88e8644d";
String city = "330100";
String timestamp = Long.toString(System.currentTimeMillis());
String sign;
Map<String, Object> mapParam = new HashMap<>();
mapParam.put("licenseNo", licenseNo);
mapParam.put("token", token);
mapParam.put("city", city);
mapParam.put("timestamp", timestamp);
SDTestUtil testUtil = new SDTestUtil();
sign = testUtil.MD5(testUtil.sort(mapParam));
mapParam.put("sign", sign);
/**
* 定義了一個(gè)list解幽，該list的數(shù)據(jù)類型是NameValuePair（簡(jiǎn)單名稱值對(duì)節(jié)點(diǎn)類型），
* 這個(gè)代碼用于Java像url發(fā)送Post請(qǐng)求烘苹。在發(fā)送post請(qǐng)求時(shí)用該list來(lái)存放參數(shù)躲株。
*/
List<NameValuePair> urlParameters = new ArrayList<>();
urlParameters.add(new BasicNameValuePair("licenseNo", licenseNo));
urlParameters.add(new BasicNameValuePair("token", token));
urlParameters.add(new BasicNameValuePair("city", city));
urlParameters.add(new BasicNameValuePair("timestamp", timestamp));
urlParameters.add(new BasicNameValuePair("sign", sign));
CloseableHttpClient httpclient = HttpClients.createDefault();
CloseableHttpResponse response = null;
HttpPost post = new HttpPost("http://101.231.154.154:8047/v4.0/renewal");
try {
post.setEntity(new UrlEncodedFormEntity(urlParameters, HTTP.UTF_8));
try {
response = httpclient.execute(post);
// 判斷網(wǎng)絡(luò)連接狀態(tài)碼是否正常(0--200都數(shù)正常)
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
String content = EntityUtils.toString(response.getEntity(), "UTF-8");
JSONObject jsonObject = JSON.parseObject(content);
System.out.println("報(bào)價(jià)返回內(nèi)容是：" + jsonObject.toString());
if ("SUCCESS".equals(jsonObject.getString("code"))) {
System.out.println("成功，系統(tǒng)處理正常");
}
}
EntityUtils.consume(response.getEntity());//完全消耗
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (null != response) response.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} finally {
//釋放鏈接
try {
httpclient.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
