常用工具类
工具类
HttpClientSender
public class HttpClientSender {
private static PoolingHttpClientConnectionManager poolingHttpClientConnectionManager = null;
private static Map<String, CloseableHttpClient> httpClients = new HashMap<String, CloseableHttpClient>();
private static Object o = new Object();
public static String sendHttpPost(String host, String method, String urlParams, String sendData) throws IOException {
String requestUrl = host + method + urlParams;
Map<String, Object> response = request("POST", requestUrl, sendData, null);
int responseCode = Integer.parseInt(response.get("responseCode").toString());
byte[] responseBytes = (byte[]) response.get("responseData");
String responseString;
try {
responseString = new String(responseBytes, "UTF-8");
}
catch (UnsupportedEncodingException e) {
responseString = new String(responseBytes);
}
//请求返回结果无论成功失败，http-status均为200
if(responseCode == 200){
//返回结果
return responseString;
}else{
throw new IOException(responseCode+":"+responseString);
}
}
public static byte[] sendHttpGet(String host, String method, String urlParams) throws IOException {
String requestUrl = host + method + urlParams;
Map<String, Object> response = request("GET", requestUrl, null, null);
int responseCode = Integer.parseInt(response.get("responseCode").toString());
byte[] responseBytes = (byte[]) response.get("responseData");
//请求返回结果无论成功失败，http-status均为200
if(responseCode == 200){
//返回结果
return responseBytes;
}else{
throw new IOException(responseCode+"");
}
}
public static String urlencode(String data) {
return urlencode(data, "UTF-8");
}
public static String urlencode(String data, String charset) {
try {
return URLEncoder.encode(data, charset);
}
catch (UnsupportedEncodingException e) {
throw new RuntimeException(e.getMessage(), e);
}
}
public static Map<String, Object> request(String method, String url, Object sendData, Map<String, String> headers) throws IOException {
String requestPath;
try {
requestPath = new URL(url).getPath();
}
catch (MalformedURLException e) {
throw new RuntimeException(e.getMessage(), e);
}
CloseableHttpClient httpClient = getHttpClient(requestPath);
Map<String, Object> response = null;
if("POST".equals(method)){
response = sendPost(httpClient, url, headers, sendData);
}else{
response = sendGet(httpClient, url, headers);
}
return response;
}
private static Map<String, Object> sendPost(CloseableHttpClient httpClient, String url, Map<String, String> headers, Object sendData) throws IOException{
String tag = "[HttpRequester] [POST " + url + "]";
int responseCode = -1;
byte[] responseBytes = null;
HttpPost request = new HttpPost(url);
if (headers != null && headers.size() > 0) {
for (String name : headers.keySet()) {
String value = headers.get(name);
request.setHeader(name,value);
}
}
if (sendData != null) {
StringEntity stringEntity = new StringEntity((String)sendData, "UTF-8");
stringEntity.setContentType("application/json");
request.setEntity(stringEntity);
HttpEntity httpEntity = null;
IOException exception = null;
for (int i = 0; i < 3; i++) {
try {
CloseableHttpResponse response = httpClient.execute(request);
responseCode = response.getStatusLine().getStatusCode();
httpEntity = response.getEntity();
String responseBody = EntityUtils.toString(httpEntity, "utf-8");
if(responseBody != null){
responseBytes = responseBody.getBytes();
}else{
InputStream respStream = null;
try{
respStream = httpEntity.getContent();
int respBodySize = respStream.available();
if (respBodySize <= 0)
throw new IOException("Invalid respBodySize: " + respBodySize);
responseBytes = new byte[respBodySize];
if (respStream.read(responseBytes) != respBodySize)
throw new IOException("Read respBody Error");
} catch (Exception e) {
} finally{
if(respStream != null){
respStream.close();
}
}
}
exception = null;
break;
}
catch (UnsupportedOperationException e) {
try {
EntityUtils.consume(httpEntity);
}
catch (IOException e2) {
}
throw new RuntimeException(e.getMessage(), e);
}
catch (IOException e) {
e.printStackTrace();
exception = e;
try {
EntityUtils.consume(httpEntity);
}
catch (IOException e2) {
}
if (i < 2) {
try {
Thread.sleep(5);
}
catch (InterruptedException e2) {
}
}
}
}
if (exception != null) {
throw exception;
}
}
Map<String, Object> response = new HashMap<String, Object>();
response.put("responseCode", responseCode);
response.put("responseData", responseBytes);
String loggerResponseString = getLoggerString(responseBytes, 256);
return response;
}
private static Map<String, Object> sendGet(CloseableHttpClient httpClient, String url, Map<String, String> headers) throws IOException{
String tag = "[HttpRequester] [GET " + url + "]";
int responseCode = -1;
byte[] responseBytes = null;
HttpGet request = new HttpGet(url);
if (headers != null && headers.size() > 0) {
for (String name : headers.keySet()) {
String value = headers.get(name);
request.setHeader(name,value);
}
}
HttpEntity httpEntity = null;
IOException exception = null;
for (int i = 0; i < 3; i++) {
try {
CloseableHttpResponse response = httpClient.execute(request);
responseCode = response.getStatusLine().getStatusCode();
httpEntity = response.getEntity();
byte[] responseBody = EntityUtils.toByteArray(httpEntity);
if(responseBody != null){
responseBytes = responseBody;
}else{
InputStream respStream = null;
try{
respStream = httpEntity.getContent();
int respBodySize = respStream.available();
if (respBodySize <= 0)
throw new IOException("Invalid respBodySize: " + respBodySize);
responseBytes = new byte[respBodySize];
if (respStream.read(responseBytes) != respBodySize)
throw new IOException("Read respBody Error");
} catch (Exception e) {
} finally{
if(respStream != null){
respStream.close();
}
}
}
exception = null;
break;
}
catch (UnsupportedOperationException e) {
try {
EntityUtils.consume(httpEntity);
}
catch (IOException e2) {
}
throw new RuntimeException(e.getMessage(), e);
}
catch (IOException e) {
e.printStackTrace();
exception = e;
try {
EntityUtils.consume(httpEntity);
}
catch (IOException e2) {
}
if (i < 2) {
try {
Thread.sleep(5);
}
catch (InterruptedException e2) {
}
}
}
}
if (exception != null) {
throw exception;
}
Map<String, Object> response = new HashMap<String, Object>();
response.put("responseCode", responseCode);
response.put("responseData", responseBytes);
String loggerResponseString = getLoggerString(responseBytes, 256);
System.out.println(tag + " response " + responseCode + " " + loggerResponseString);
return response;
}
private static String getLoggerString(final byte[] data, int maxLength) {
String loggerString;
if (data.length > maxLength) {
byte[] shortData = new byte[maxLength];
System.arraycopy(data, 0, shortData, 0, shortData.length);
try {
loggerString = new String(shortData, "UTF-8") + "...";
}
catch (UnsupportedEncodingException e) {
loggerString = new String(shortData) + "...";
}
}
else {
try {
loggerString = new String(data, "UTF-8");
}
catch (UnsupportedEncodingException e) {
loggerString = new String(data);
}
}
char[] chars = new char[loggerString.length()];
loggerString.getChars(0, loggerString.length(), chars, 0);
for (int i = 0; i < chars.length; i++) {
char c = chars[i];
if (c == '\n' || c == '\r') {
chars[i] = ' ';
}
}
return new String(chars);
}
private static CloseableHttpClient getHttpClient(String requestPath) {
if (httpClients.containsKey(requestPath)) {
return httpClients.get(requestPath);
}
if (poolingHttpClientConnectionManager == null) {
synchronized(o) {
if (poolingHttpClientConnectionManager == null) {
poolingHttpClientConnectionManager = HttpClientUtils.createHttpClientConnectionManager();
}
}
}
synchronized (httpClients) {
if (httpClients.containsKey(requestPath)) {
return httpClients.get(requestPath);
}
CloseableHttpClient httpClient = HttpClientUtils.createHttpClient(poolingHttpClientConnectionManager);
httpClients.put(requestPath, httpClient);
return httpClient;
}
}
private static class HttpClientUtils {
// 默认连接超时
private static int defaultConnectTimeout = 6000;
// 默认读取超时
private static int defaultReadTimeout = 30000;
public static CloseableHttpClient createHttpClient(PoolingHttpClientConnectionManager connManager) {
//HttpHost httpHost = new HttpHost("10.211.55.4", 8888);
CloseableHttpClient httpClient = HttpClients.custom()
//.setProxy(httpHost)
.setConnectionManager(connManager)
.disableContentCompression()
.setSSLContext(getSslcontext())
.setDefaultRequestConfig(getRequestConfig())
.build();
return httpClient;
}
public static PoolingHttpClientConnectionManager createHttpClientConnectionManager() {
SSLConnectionSocketFactory sslConnectionSocketFactory = null;
try {
sslConnectionSocketFactory = new SSLConnectionSocketFactory(getSslcontext(), SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory> create()
.register("https", sslConnectionSocketFactory)
.register("http", new PlainConnectionSocketFactory())
.build();
PoolingHttpClientConnectionManager cm =new PoolingHttpClientConnectionManager(socketFactoryRegistry);
cm.setMaxTotal(500);
cm.setDefaultMaxPerRoute(500);
return cm;
}
private static RequestConfig getRequestConfig() {
RequestConfig defaultRequestConfig = RequestConfig.custom()
.setConnectionRequestTimeout(defaultConnectTimeout)
.setSocketTimeout(defaultReadTimeout)
.build();
return defaultRequestConfig;
}
private static SSLContext getSslcontext() {
SSLContext sslContext = null;
try {
sslContext = SSLContext.getInstance("TLS");
TrustManager tm = new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
public X509Certificate[] getAcceptedIssuers() {
return null;
}
};
sslContext.init(null, new TrustManager[] { tm }, null);
}
catch (Exception e) {
e.printStackTrace();
}
return sslContext;
}
}
}
工具类
RSAUtils
public class RSAUtils {
/**
* 获取当前的时间戳参数
* @return
*/
public static String getRtick(){
long timestamp = new Date().getTime();
int rnd = (int)Math.random() * 1000;
String rtick = timestamp + "" + rnd;
return rtick;
}
/**
* 计算参数签名
* @param developerId 开发者ID
* @param privateKey 用户私钥
* @param host 请求的HOST地址（http://ip:port/context）
* @param methodName 请求的接口方法名
* @param rtick 时间戳参数
* @param urlParams url参数（param1=value1¶m2=value2¶m3=value3）
* @param requestBody request body 参数（JSON字符串）
* @return
*/
public static String calcRsaSign(String developerId, String privateKey, String host, String methodName, String rtick, String urlParams, String requestBody) {
String url = host+methodName;
Map<String, String> mySignedURLParams = new TreeMap<String, String>();
mySignedURLParams.put("developerId", developerId);
mySignedURLParams.put("rtick", rtick);
mySignedURLParams.put("signType", "rsa");
if(urlParams != null && !"".equals(urlParams)){
String[] params = urlParams.split("&");
for(String p1 : params){
String[] p2 = p1.split("=");
String key = p2[0];
String value = "";
if(p2.length == 2){
value = p2[1];
}
mySignedURLParams.put(key, value);
}
}
String requestPath;
try {
requestPath = new URL(url).getPath();
}
catch (MalformedURLException e) {
throw new RuntimeException(e.getMessage(), e);
}
StringBuilder signStringBuilder = new StringBuilder();
for (String name : mySignedURLParams.keySet()) {
String value = mySignedURLParams.get(name);
signStringBuilder.append(name);
signStringBuilder.append("=");
signStringBuilder.append(value);
}
signStringBuilder.append(requestPath);
if (requestBody != null && !"".equals(requestBody) ) {
String requestMd5 = getRequestMd5(requestBody);
signStringBuilder.append(requestMd5);
}
String signString = signStringBuilder.toString();
String rsaSign = calcRsaSign(privateKey, signString);
//rsa算出来的sign，需要urlencode
try {
rsaSign = URLEncoder.encode(rsaSign,"UTF-8");
} catch (UnsupportedEncodingException e) {
rsaSign = null;
}
return rsaSign;
}
/**
* 获取request body 的MD5
* @param requestBody
* @return
*/
private static String getRequestMd5(final String requestBody) {
byte[] data;
String newRequestBody = convertToUtf8(requestBody);
try {
data = newRequestBody.getBytes("UTF-8");
}
catch (UnsupportedEncodingException e) {
throw new RuntimeException(e.getMessage(), e);
}
return md5(data);
}
/**
* 计算参数RSA签名
* @param privateKey
* @param signData
* @return
*/
private static String calcRsaSign(String privateKey, final String signData) {
byte[] data;
try {
data = signData.getBytes("UTF-8");
}
catch (UnsupportedEncodingException e) {
throw new RuntimeException(e.getMessage(), e);
}
byte[] sign = null;
// 解密由base64编码的私钥
byte[] privateKeyBytes = base64decode(privateKey.getBytes());
// 构造PKCS8EncodedKeySpec对象
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(privateKeyBytes);
// KEY_ALGORITHM 指定的加密算法
KeyFactory keyFactory;
try {
keyFactory = KeyFactory.getInstance("RSA");
}
catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e.getMessage(), e);
}
// 取私钥匙对象
PrivateKey priKey;
try {
priKey = keyFactory.generatePrivate(pkcs8KeySpec);
}
catch (InvalidKeySpecException e) {
throw new RuntimeException(e.getMessage(), e);
}
// 用私钥对信息生成数字签名
Signature signature;
try {
signature = Signature.getInstance("SHA1withRSA");
}
catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e.getMessage(), e);
}
try {
signature.initSign(priKey);
}
catch (InvalidKeyException e) {
throw new RuntimeException(e.getMessage(), e);
}
try {
signature.update(data);
sign = signature.sign();
}
catch (SignatureException e) {
throw new RuntimeException(e.getMessage(), e);
}
return new String(base64encode(sign));
}
/**
* 转换字符集到utf8
*
* @param src
* @return
*/
private static String convertToUtf8(String src) {
if (src == null || src.length() == 0) {
return src;
}
if ("UTF-8".equalsIgnoreCase(Charset.defaultCharset().name())) {
return src;
}
byte[] srcData = src.getBytes();
try {
return new String(srcData, "UTF-8");
}
catch (UnsupportedEncodingException e) {
throw new RuntimeException(e.getMessage(), e);
}
}
/**
* md5
* @param data
* @return
*/
public static String md5(byte[] data) {
char hexDigits[]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
byte[] btInput = data;
// 获得MD5摘要算法的 MessageDigest 对象
MessageDigest mdInst;
try {
mdInst = MessageDigest.getInstance("MD5");
}
catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e.getMessage(), e);
}
// 使用指定的字节更新摘要
mdInst.update(btInput);
// 获得密文
byte[] md = mdInst.digest();
// 把密文转换成十六进制的字符串形式
int j = md.length;
char str[] = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i++) {
byte byte0 = md[i];
str[k++] = hexDigits[byte0 >>> 4 & 0xf];
str[k++] = hexDigits[byte0 & 0xf];
}
return new String(str);
}
/**
* base64编码
* @param data
* @return
*/
public static byte[] base64encode(byte[] data) {
return Base64.encodeBase64(data);
}
/**
* base64编码字符串
* @param data
* @return
*/
public static String base64encodeString(byte[] data) {
return Base64.encodeBase64String(data);
}
/**
* base64解码
* @param data
* @return
*/
public static byte[] base64decode(byte[] data) {
try {
return Base64.decodeBase64(data);
} catch (Exception e) {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
for (int i = 0; i < data.length; i++) {
byte c = data[i];
if (c == 13 || c == 10) {
continue;
}
outputStream.write(c);
}
try {
outputStream.close();
} catch (IOException e2) {
}
data = outputStream.toByteArray();
return Base64.decodeBase64(data);
}
}
}
