Android 封装 Http 请求工具

Android 封装 Http 请求工具

工具类

import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; import java.util.Map; /** * http 请求工具 * * @author Tellsea * @date 2021-11-24 */ public class HttpUtils { /** * get请求封装 * * @param url * @param params * @param encode * @param listener */ public static void getRequest(String url, Map<String, String> params, String encode, OnResponseListener listener) { StringBuffer sb = new StringBuffer(url); sb.append("?"); if (params != null && !params.isEmpty()) { //增强for遍历循环添加拼接请求内容 for (Map.Entry<String, String> entry : params.entrySet()) { sb.append(entry.getKey()).append("=").append(entry.getValue()).append("&"); } sb.deleteCharAt(sb.length() - 1); if (listener != null) { try { URL path = new URL(sb.toString()); if (path != null) { HttpURLConnection con = (HttpURLConnection) path.openConnection(); //设置请求方式 con.setRequestMethod("GET"); //链接超时3秒 con.setConnectTimeout(3000); con.setDoOutput(true); con.setDoInput(true); OutputStream os = con.getOutputStream(); os.write(sb.toString().getBytes(encode)); os.close(); //应答码200表示请求成功 if (con.getResponseCode() == 200) { onSuccess(encode, listener, con); } } } catch (Exception error) { error.printStackTrace(); onError(listener, error); } } } } /** * POST请求 * * @param url * @param params * @param encode * @param listener */ public static void postRequest(String url, Map<String, String> params, String encode, OnResponseListener listener) { StringBuffer sb = new StringBuffer(); if (params != null && !params.isEmpty()) { for (Map.Entry<String, String> entry : params.entrySet()) { sb.append(entry.getKey()).append("=").append(entry.getValue()).append("&"); } sb.deleteCharAt(sb.length() - 1); } if (listener != null) { try { URL path = new URL(url); if (path != null) { HttpURLConnection con = (HttpURLConnection) path.openConnection(); con.setRequestMethod("POST"); //设置请求方法POST con.setConnectTimeout(3000); con.setDoOutput(true); con.setDoInput(true); byte[] bytes = sb.toString().getBytes(); OutputStream outputStream = con.getOutputStream(); outputStream.write(bytes); outputStream.close(); if (con.getResponseCode() == 200) { onSuccess(encode, listener, con); } } } catch (Exception e) { e.printStackTrace(); onError(listener, e); } } } private static void onError(OnResponseListener listener, Exception onError) { listener.onError(onError.toString()); } private static void onSuccess(String encode, OnResponseListener listener, HttpURLConnection con) throws IOException { InputStream inputStream = con.getInputStream(); //创建内存输出流 ByteArrayOutputStream baos = new ByteArrayOutputStream(); int len = 0; byte[] bytes = new byte[1024]; if (inputStream != null) { while ((len = inputStream.read(bytes)) != -1) { baos.write(bytes, 0, len); } String str = new String(baos.toByteArray(), encode); listener.onSuccess(str); } } }

/** * 请求回调 * * @author Tellsea * @date 2021-11-24 */ public interface OnResponseListener { void onSuccess(String response); void onError(String error); }

使用案例

Map<String, String> map = new HashMap<>();

map.put(“extract”, encrypt);

HttpUtils.getRequest(“http://tellsea.4kb.cn/arcFace/arcFace”, map, “utf-8”, new OnResponseListener() {

@Override

public void onSuccess(String response) {

System.out.println(response);

AjaxResult result = new Gson().fromJson(response, AjaxResult.class);

if (IntegerUtils.eq(result.getCode(), 200)) {

// 处理逻辑业务

} else {

// 识别失败

}

}

@Override

public void onError(String error) {

System.out.println("请求失败：" + error);

}

});

Android开发的更多学习资料可以扫码免费领取！

Android基础课程资料包

目录

第一章 UI

第一章 UI

更有更多资料，加微信免费领取