帶有請求頭的Get請求
不帶請求頭的GET請求
帶請求頭的POST請求
請求體是String類型,一般需要將多個請求體參數封裝成對象。可以用javaBean封裝。map封裝。List封裝。JsonObject封裝。最後轉成String
package com.ruoyi.common.utils;
import com.alibaba.fastjson.JSON;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* Http請求
*
* @author mszhou
*/
public class HttpsUtil {
private static final Logger logger = LoggerFactory.getLogger(HttpsUtil.class);
private static final int TIMEOUT = 45000;
public static final String ENCODING = "UTF-8";
/**
* 創建HTTP連接
*
* @param url 地址
* @param method 方法 get或POST
* @param headerParameters 頭信息 apikey
* @param body 請求內容
* @return
* @throws Exception
*/
public static HttpURLConnection createConnection(String url, String method, Map<String, String> headerParameters, String body)
throws Exception {
URL Url = new URL(url);
trustAllHttpsCertificates();
HttpURLConnection httpConnection = (HttpURLConnection) Url.openConnection();
// 設置請求時間
httpConnection.setConnectTimeout(TIMEOUT);
// 設置 header
if (headerParameters != null) {
Iterator<String> iteratorHeader = headerParameters.keySet().iterator();
while (iteratorHeader.hasNext()) {
String key = iteratorHeader.next();
String value = headerParameters.get(key);
httpConnection.setRequestProperty(key, value);
}
}
// heder請求參數爲null時,默認是application/json
//請求類型application/json 或者 application/x-www-form-urlencoded
httpConnection.setRequestProperty("Content-Type", "application/json;charset=" + ENCODING);
// 設置請求方法
httpConnection.setRequestMethod(method);
httpConnection.setDoOutput(true);
httpConnection.setDoInput(true);
// 寫query數據流
if (!(body == null || body.trim().equals(""))) {
OutputStream writer = httpConnection.getOutputStream();
try {
writer.write(body.getBytes(ENCODING));
} finally {
if (writer != null) {
writer.flush();
writer.close();
}
}
}
// 請求結果
int responseCode = httpConnection.getResponseCode();
if (responseCode != 200) {
throw new Exception(responseCode + ":" + inputStream2String(
httpConnection.getErrorStream(), ENCODING));
}
return httpConnection;
}
/**
* 將參數化爲 body
*
* @param params
* @return
*/
public static String getRequestBody(Map<String, String> params) {
return getRequestBody(params, true);
}
/**
* 將參數化爲 body
* 將Map集合中的鍵值多轉成url參數的樣式objInstId=0&executeResId=5505&objId=3200&imei=869976030098439
*
* @param params
* @return
*/
public static String getRequestBody(Map<String, String> params, boolean urlEncode) {
StringBuilder body = new StringBuilder();
Iterator<String> iteratorHeader = params.keySet().iterator();
while (iteratorHeader.hasNext()) {
String key = iteratorHeader.next();
String value = params.get(key);
if (urlEncode) {
try {
body.append(key + "=" + URLEncoder.encode(value, ENCODING) + "&");
} catch (UnsupportedEncodingException e) {
}
} else {
body.append(key + "=" + value + "&");
}
}
if (body.length() == 0) {
return "";
}
String strbody = body.substring(0, body.length() - 1);
return strbody;
}
/**
* 帶有請求頭的POST請求
*
* @param address 請求地址 url
* @param header 請求頭參數apikey
* @param body 請求體 一般是將javaBean對象,map對象轉成json字符串
* @return
* @throws Exception
*/
public static String post(String address, Map<String, String> header, String body) throws Exception {
//參數1:url請求地址。參數2:POST方法 。參數3:頭信息"api-key=PkbXWxmDv0zG48sWdnr9P=BLJPs=" 參數4:body請求體
String proxyHttpRequest = proxyHttpRequest(address, "POST", header, body);
return proxyHttpRequest;
}
/**
* 不帶請求頭的Get請求
*
* @param address 接口URL
* @param parameters ?後面的請求參數
* @return
* @throws Exception
*/
public static String get(String address, Map<String, String> parameters) throws Exception {
//參數1:請求URL和?後面的參數,參數2:請求方式GET,參數3:請求頭。請求體:GET請求爲NULL,用於POST請求
return proxyHttpRequest(address + "?"
+ getRequestBody(parameters), "GET", null, null);
}
/**
* 帶請求頭的Get請求
*
* @param address 接口URL
* @param parameters ?後面的請求參數
* @param header 請求頭 header
* @return
* @throws Exception
*/
public static String doGet(String address, Map<String, String> parameters, Map<String, String> header) throws Exception {
//參數1:請求URL和?後面的參數。參數2:請求方式GET。參數3:請求頭。請求體:GET請求爲NULL,用於POST請求
return proxyHttpRequest(address + "?"
+ getRequestBody(parameters), "GET", header, null);
}
/**
* Delete請求,刪除
* @param address 請求地址 url http://api.heclouds.com/devices/123455254
* @param header 請求頭參數
* @return
* @throws Exception
*/
public static String delete(String address, Map<String, String> header) throws Exception {
//參數1:url請求地址。參數2:POST方法 。參數3:頭信息"api-key=PkbXWxmDv0zG48sWdnr9P=BLJPs=" 參數4:body請求體
String proxyHttpRequest = proxyHttpRequest(address, "DELETE", header, null);
return proxyHttpRequest;
}
/**
* PUT請求的更新操作
* @param address 請求URL樣式 http://api.heclouds.com/devices/580959234
* @param header 請求頭
* @param body 請求體
* @return
* @throws Exception
*/
public static String put(String address, Map<String, String> header,String body) throws Exception {
//參數1:url請求地址。參數2:POST方法 。參數3:頭信息"api-key=PkbXWxmDv0zG48sWdnr9P=BLJPs=" 參數4:body請求體
String proxyHttpRequest = proxyHttpRequest(address, "PUT", header, body);
return proxyHttpRequest;
}
/**
* 讀取網絡文件
*
* @param address
* @param headerParameters
* @param file
* @return
* @throws Exception
*/
public static String getFile(String address,
Map<String, String> headerParameters, File file) throws Exception {
String result = "fail";
HttpURLConnection httpConnection = null;
try {
httpConnection = createConnection(address, "POST", null,
getRequestBody(headerParameters));
result = readInputStream(httpConnection.getInputStream(), file);
} catch (Exception e) {
throw e;
} finally {
if (httpConnection != null) {
httpConnection.disconnect();
}
}
return result;
}
public byte[] getFileByte(String address,
Map<String, String> headerParameters) throws Exception {
byte[] result = null;
HttpURLConnection httpConnection = null;
try {
httpConnection = createConnection(address, "POST", null,
getRequestBody(headerParameters));
result = readInputStreamToByte(httpConnection.getInputStream());
} catch (Exception e) {
throw e;
} finally {
if (httpConnection != null) {
httpConnection.disconnect();
}
}
return result;
}
/**
* 讀取文件流
*
* @param in
* @return
* @throws Exception
*/
public static String readInputStream(InputStream in, File file)
throws Exception {
FileOutputStream out = null;
ByteArrayOutputStream output = null;
try {
output = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while ((len = in.read(buffer)) != -1) {
output.write(buffer, 0, len);
}
out = new FileOutputStream(file);
out.write(output.toByteArray());
} catch (Exception e) {
throw e;
} finally {
if (output != null) {
output.close();
}
if (out != null) {
out.close();
}
}
return "success";
}
public byte[] readInputStreamToByte(InputStream in) throws Exception {
FileOutputStream out = null;
ByteArrayOutputStream output = null;
byte[] byteFile = null;
try {
output = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while ((len = in.read(buffer)) != -1) {
output.write(buffer, 0, len);
}
byteFile = output.toByteArray();
} catch (Exception e) {
throw e;
} finally {
if (output != null) {
output.close();
}
if (out != null) {
out.close();
}
}
return byteFile;
}
/**
* HTTP請求
*
* @param address 地址
* @param method 指明是get或post
* @param headerParameters 請求頭信息
* @param body 請求內容 多個參數時,將對象轉成json字符串
* @return
* @throws Exception
*/
public static String proxyHttpRequest(String address, String method, Map<String, String> headerParameters, String body) throws Exception {
String result = null;
HttpURLConnection httpConnection = null;
try {
//參數1 地址。參數2 get或post 參數3:頭信息 參數4 url參數 請求內容
httpConnection = createConnection(address, method, headerParameters, body);
String encoding = "UTF-8";
if (httpConnection.getContentType() != null && httpConnection.getContentType().indexOf("charset=") >= 0) {
encoding = httpConnection.getContentType().substring(
httpConnection.getContentType().indexOf("charset=") + 8);
}
result = inputStream2String(httpConnection.getInputStream(), encoding);
logger.info("HTTPproxy response: {},{}", address, result.toString());
} catch (Exception e) {
logger.info("HTTPproxy error: {}", e.getMessage());
throw e;
} finally {
if (httpConnection != null) {
httpConnection.disconnect();
}
}
return result;
}
/**
* 讀取inputStream 到 string
*
* @param input
* @param encoding
* @return
* @throws IOException
*/
private static String inputStream2String(InputStream input, String encoding)
throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(input,
encoding));
StringBuilder result = new StringBuilder();
String temp = null;
while ((temp = reader.readLine()) != null) {
result.append(temp);
}
return result.toString();
}
/**
* 設置 https 請求
*
* @throws Exception
*/
public static void trustAllHttpsCertificates() throws Exception {
HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
public boolean verify(String str, SSLSession session) {
return true;
}
});
javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[1];
javax.net.ssl.TrustManager tm = new miTM();
trustAllCerts[0] = tm;
javax.net.ssl.SSLContext sc = javax.net.ssl.SSLContext
.getInstance("SSL");
sc.init(null, trustAllCerts, null);
HttpsURLConnection.setDefaultSSLSocketFactory(sc
.getSocketFactory());
}
//設置 https 請求證書
static class miTM implements javax.net.ssl.TrustManager, javax.net.ssl.X509TrustManager {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public boolean isServerTrusted(
java.security.cert.X509Certificate[] certs) {
return true;
}
public boolean isClientTrusted(
java.security.cert.X509Certificate[] certs) {
return true;
}
public void checkServerTrusted(
java.security.cert.X509Certificate[] certs, String authType)
throws java.security.cert.CertificateException {
return;
}
public void checkClientTrusted(
java.security.cert.X509Certificate[] certs, String authType)
throws java.security.cert.CertificateException {
return;
}
}
//====================================================================
//============================= 測試調用 ============================
//====================================================================
public static void main0(String[] args) {
try {
//請求地址(我這裏測試使用淘寶提供的手機號碼信息查詢的接口)
String address = "https://tcc.taobao.com/cc/json/mobile_tel_segment.htm";
//get請求的請求參數
Map<String, String> params = new HashMap<String, String>();
params.put("tel", "13791086826");
//不帶有請求頭的get請求
String res = HttpsUtil.get(address, params);
System.out.println(res);//打印返回參數
} catch (Exception e) {
// TODO 異常
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
//封裝請求頭
Map<String, String> header = new HashMap<String, String>();
header.put("api-key", "PkbXWxmD23v0233zG42323dnr9232323s=");
String url = "https://api.heclouds.com/devices";
//get請求的請求參數
Map<String, String> params = new HashMap<String, String>();
params.put("device_id", "576833338");
//帶有請求頭的get請求
String s = HttpsUtil.doGet(url, params, header);
System.out.println(s);
String url1 = "https://api.heclouds.com/devices/getbyimei";
//get請求的請求參數
Map<String, String> params1 = new HashMap<String, String>();
params1.put("imei", "8606400408122333");
//帶有請求頭的get請求
String s1 = HttpsUtil.doGet(url1, params1, header);
System.out.println(s1);
//delete請求,刪除設備
String device_id="5349233336";
String url2 = "https://api.heclouds.com/devices/"+device_id;
//帶有請求頭的Delete請求
String s2 = HttpsUtil.delete(url2, header);
System.out.println(s2);
//put請求,更新設備
String deviceId="580933393";
String url3 = "https://api.heclouds.com/devices/"+deviceId;
Map<String, String> body = new HashMap<String, String>();
body.put("title","aaaa");
HttpsUtil.put(url3,header,JSON.toJSONString(body));
}
/**
* 帶有請求頭的post方式示例
*
* @param args
*/
public static void main3(String[] args) {
try {
String url = "https://api.dtuip.com/qy/user/login.html";
Map<String, String> header = new HashMap<String, String>();
header.put("Content-Type", "application/json");
Map<String, String> body = new HashMap<String, String>();
body.put("userName", "11239112233");
body.put("password", "123443455");
String mapJsonString = JSON.toJSONString(body);
String postResu = HttpsUtil.post(url, null, mapJsonString);
System.out.println(postResu);
} catch (Exception e) {
e.printStackTrace();
}
}
}