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在微信公众号/小程序开发过程中,后端服务要用到微信公众平台提供的各种接口,比如创建个性化菜单的接口,网页授权接口,消息事件接口等,事件推送接口等,几乎大多数的微信接口都要用到GET/POST方式的http请求,那么就需要封装一款通用的高效的统一请求接口,笔者把封装好的代码分享出来,这里涉及到2个工具类和1个依赖jar,工具类分别是1个是信任管理器工具类,1个是具体的请求接口工具类,依赖的jar见下面的maven依赖,本案例使用Java语言,笔者相关博客中都会用到这2个工具类,需要的开发者朋友直接粘贴拿走就可用,下面直接看具体代码:
一、引入maven依赖jar
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
二、信任管理器工具类
/**
* 创建时间:2019年3月19日 下午3:47:54
* 类说明:信任管理器工具类
* @author guobinhui
* @since JDK 1.8.0_51
*/
public class MyX509TrustManager implements X509TrustManager{
@Override
public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
// TODO Auto-generated method stub
}
@Override
public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
// TODO Auto-generated method stub
}
@Override
public X509Certificate[] getAcceptedIssuers() {
// TODO Auto-generated method stub
return null;
}
}
三、统一请求封装
/**
* 创建时间:2019年3月19日 下午3:47:54
* 类说明:封装统一的GET/POST请求接口
* @author guobinhui
* @since JDK 1.8.0_51
*/
public class WeiXinUtil {
private final static Logger logger= LoggerFactory.getLogger(WeiXinUtil.class);
public static JSONObject HttpGet(String URL) {
String result = null;
JSONObject jsonObj = null;
CloseableHttpClient httpclient = HttpClients.createDefault();
CloseableHttpResponse response = null;
try {
// 创建httpGet.
HttpGet httpGet = new HttpGet(URL);
// 通过请求对象获取响应对象
response = httpclient.execute(httpGet);
// 判断网络连接状态码是否正常(0--200都数正常)
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
HttpEntity entity = response.getEntity();//从HttpResponse中获取结果
if(!StringUtils.isEmpty(entity)){
result = EntityUtils.toString(entity,"utf-8");
logger.info("请求的数据结果为{}",result);
jsonObj = JSONObject.parseObject(result);//字符串类型转换为JSON对象
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (response != null) {
response.close();
}
httpclient.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return jsonObj;
}
public static JSONObject httpPost(String requestUrl, String requestMethod, String outputStr) {
JSONObject jsonObject = null;
StringBuffer buffer = new StringBuffer();
try {
// 创建SSLContext对象,并使用我们指定的信任管理器初始化
TrustManager[] tm = { new MyX509TrustManager() };
SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
sslContext.init(null, tm, new java.security.SecureRandom());
// 从上述SSLContext对象中得到SSLSocketFactory对象
SSLSocketFactory ssf = sslContext.getSocketFactory();
URL url = new URL(requestUrl);
HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
httpUrlConn.setSSLSocketFactory(ssf);
httpUrlConn.setDoOutput(true);
httpUrlConn.setDoInput(true);
httpUrlConn.setUseCaches(false);
// 设置请求方式(GET/POST)
httpUrlConn.setRequestMethod(requestMethod);
// 当有数据需要提交时
if (null != outputStr) {
OutputStream outputStream = httpUrlConn.getOutputStream();
// 注意编码格式,防止中文乱码
outputStream.write(outputStr.getBytes("UTF-8"));
outputStream.close();
}
// 将返回的输入流转换成字符串
InputStream inputStream = httpUrlConn.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
// 释放资源
inputStream.close();
inputStream = null;
httpUrlConn.disconnect();
jsonObject = JSON.parseObject(buffer.toString());
} catch (ConnectException ce) {
logger.info("Weixin server connection timed out...");
} catch (Exception e) {
logger.info("https request error:{}.");
}
return jsonObject;
}
}
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