使用接口模拟调运其他平台数据并返回
案例描述在平台A上利用接口模拟调运平台B中功能数据实现思路
[*]确定平台B的功能数据正常，获取指定用户token、功能编码、数据ID（只需要一条数据的时候），组成url
[*]在平台A写接口，利用HttpClientUtil工具类的doPost()方法进行解析并获取数据
[*]在平台A上写个测试按钮，调运接口进行测试
操作步骤1. 确定平台B的url //定义api，一般情况下这个api的url是第三方提供
Stringid = "5qZUoTMjp3LsbO8E4y2";
String apiurl = "http://example.jepaas.com/je/getInfoById"+"?pkValue="+id+"&authorization=6Dy0QDIS7IRuVXzqmYh&tableCode=JE_DEMO_XMINFO";2. 在平台A写接口，利用HttpClientUtil工具类的doPost()方法进行解析并获取数据3. 在平台A上写个测试按钮，调运接口进行测试相关代码1 、HttpClientUtil代码package com.project.demo.controller;
import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
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.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
public class HttpClientUtilTest {
/**
* 带参数的get请求
* @param url
* @param param
* @return String
*/
public static String doGet(String url, Map<String, String> param) {
// 创建Httpclient对象
CloseableHttpClient httpclient = HttpClients.createDefault();
String resultString = "";
CloseableHttpResponse response = null;
try {
// 创建uri
URIBuilder builder = new URIBuilder(url);
if (param != null) {
for (String key : param.keySet()) {
builder.addParameter(key, param.get(key));
}
}
URI uri = builder.build();
// 创建http GET请求
HttpGet httpGet = new HttpGet(uri);
// 执行请求
response = httpclient.execute(httpGet);
// 判断返回状态是否为200
if (response.getStatusLine().getStatusCode() == 200) {
resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (response != null) {
response.close();
}
httpclient.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return resultString;
}
/**
* 不带参数的get请求
* @param url
* @return String
*/
public static String doGet(String url) {
return doGet(url, null);
}
/**
* 带参数的post请求
* @param url
* @param param
* @return String
*/
public static String doPost(String url, Map<String, String> param) {
// 创建Httpclient对象
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = null;
String resultString = "";
try {
// 创建Http Post请求
HttpPost httpPost = new HttpPost(url);
// 创建参数列表
if (param != null) {
List<NameValuePair> paramList = new ArrayList<>();
for (String key : param.keySet()) {
paramList.add(new BasicNameValuePair(key, param.get(key)));
}
// 模拟表单
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);
httpPost.setEntity(entity);
}
// 执行http请求
response = httpClient.execute(httpPost);
resultString = EntityUtils.toString(response.getEntity(), "utf-8");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
response.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return resultString;
}
/**
* 不带参数的post请求
* @param url
* @return String
*/
public static String doPost(String url) {
return doPost(url, null);
}
/**
* 传送json类型的post请求
* @param url
* @param json
* @return String
*/
public static String doPostJson(String url, String json) {
// 创建Httpclient对象
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = null;
String resultString = "";
try {
// 创建Http Post请求
HttpPost httpPost = new HttpPost(url);
// 创建请求内容
StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
httpPost.setEntity(entity);
// 执行http请求
response = httpClient.execute(httpPost);
resultString = EntityUtils.toString(response.getEntity(), "utf-8");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
response.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return resultString;
}
} 2、接口代码package com.project.demo.controller;
import com.je.core.base.MethodArgument;
import com.je.core.result.BaseRespResult;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
@RequestMapping(value = "/je/demo/test")
public class TestDemoController {
@RequestMapping(value = "/testUrl", method = RequestMethod.POST, produces = "application/json; charset=utf-8")
@ResponseBody
public BaseRespResult testUrl(MethodArgument param){
//定义api，一般情况下这个api的url是第三方提供
Stringid = "5qZUoTMjp3LsbO8E4y2";
String apiurl = "http://example.jepaas.com/je/getInfoById"+"?pkValue="+id+"&authorization=6Dy0QDIS7IRuVXzqmYh&tableCode=JE_DEMO_XMINFO";
String result="";
try {
result = HttpClientUtilTest.doPost(apiurl);
} catch (Exception e) {
e.printStackTrace();
}
returnBaseRespResult.successResult(result);
}
}
平台调试1、在某个功能上写个按钮,进行Ajax调运测试https://doc.jepaas.com/uploads/je_doc_jepaas/images/m_7d82a480135dbb4583c3a9706065ffce_r.png2、调运代码function(btn,event,eOpts){
var obj = JE.ajax({
url:'/je/demo/test/testUrl',
text:false,//返回字符串,如果不配置,返回对象
params:{}
});
if(obj.success){
console.log(obj);
JE.alert(obj.obj);
}else{
JE.alert('失败,请联系管理员');
}
}
3、后台断点调试https://doc.jepaas.com/uploads/je_doc_jepaas/images/m_c26d9603c57a99a51054f80ae5dc4be6_r.png
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