Java访问https接口实现

2023-02-23 16:09:42

用两种方式分别实现了，第一种是jdk原生的，代码稍微多点，第二种是基于httpclient4版本的。在我的机器上，访问同一个接口原生的性能要好很多（前者900ms，后者5.7s左右），httpclient主要性能消耗在"HttpResponse res = client.execute(post);"，大约占总执行时间的90%。

Java代码

private static final String METHOD_POST = "POST";
private static final String DEFAULT_CHARSET = "utf-8";
public static String doPost(String url, String params, String charset, int connectTimeout, int readTimeout) throws Exception {
String ctype = "application/json;charset=" + charset;
byte[] content = {};
if(params != null){
content = params.getBytes(charset);
}
return doPost(url, ctype, content, connectTimeout, readTimeout);
}
public static String doPost(String url, String ctype, byte[] content,int connectTimeout,int readTimeout) throws Exception {
HttpsURLConnection conn = null;
OutputStream out = null;
String rsp = null;
try {
try{
SSLContext ctx = SSLContext.getInstance("TLS");
ctx.init(new KeyManager[0], new TrustManager[] {new DefaultTrustManager()}, new SecureRandom());
SSLContext.setDefault(ctx);
conn = getConnection(new URL(url), METHOD_POST, ctype);
conn.setHostnameVerifier(new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
return true;
}
});
conn.setConnectTimeout(connectTimeout);
conn.setReadTimeout(readTimeout);
}catch(Exception e){
log.error("GET_CONNECTOIN_ERROR, URL = " + url, e);
throw e;
}
try{
out = conn.getOutputStream();
out.write(content);
rsp = getResponseAsString(conn);
}catch(IOException e){
log.error("REQUEST_RESPONSE_ERROR, URL = " + url, e);
throw e;
}
}finally {
if (out != null) {
out.close();
}
if (conn != null) {
conn.disconnect();
}
}
return rsp;
}
private static class DefaultTrustManager implements X509TrustManager {
@Override
public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {}
@Override
public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {}
@Override
public X509Certificate[] getAcceptedIssuers() {
return null;
}
}
private static HttpsURLConnection getConnection(URL url, String method, String ctype)
throws IOException {
HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
conn.setRequestMethod(method);
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setRequestProperty("Accept", "text/xml,text/javascript,text/html");
conn.setRequestProperty("User-Agent", "stargate");
conn.setRequestProperty("Content-Type", ctype);
return conn;
}
protected static String getResponseAsString(HttpURLConnection conn) throws IOException {
String charset = getResponseCharset(conn.getContentType());
InputStream es = conn.getErrorStream();
if (es == null) {
return getStreamAsString(conn.getInputStream(), charset);
} else {
String msg = getStreamAsString(es, charset);
if (StringUtils.isEmpty(msg)) {
throw new IOException(conn.getResponseCode() + ":" + conn.getResponseMessage());
} else {
throw new IOException(msg);
}
}
}
private static String getStreamAsString(InputStream stream, String charset) throws IOException {
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(stream, charset));
StringWriter writer = new StringWriter();
char[] chars = new char[256];
int count = 0;
while ((count = reader.read(chars)) > 0) {
writer.write(chars, 0, count);
}
return writer.toString();
} finally {
if (stream != null) {
stream.close();
}
}
}
private static String getResponseCharset(String ctype) {
String charset = DEFAULT_CHARSET;
if (!StringUtils.isEmpty(ctype)) {
String[] params = ctype.split(";");
for (String param : params) {
param = param.trim();
if (param.startsWith("charset")) {
String[] pair = param.split("=", 2);
if (pair.length == 2) {
if (!StringUtils.isEmpty(pair[1])) {
charset = pair[1].trim();
}
}
break;
}
}
}
return charset;
}

Java代码

public static JSONObject post(String url, String json) {
HttpClient client = new DefaultHttpClient();
client = WebClientDevWrapper.wrapClient(client);
HttpPost post = new HttpPost(url);
JSONObject response = null;
try {
StringEntity s = new StringEntity(json);
s.setContentEncoding("UTF-8");
s.setContentType("application/json");
post.setEntity(s);
Long startTime = System.currentTimeMillis();
HttpResponse res = client.execute(post);
System.out.println(System.currentTimeMillis() - startTime);
if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
HttpEntity entity = res.getEntity();
String charset = EntityUtils.getContentCharSet(entity);
if(charset == null){
charset = "utf-8";
}
response = new JSONObject(new JSONTokener(
new InputStreamReader(entity.getContent(), charset)));
}
} catch (Exception e) {
throw new RuntimeException(e);
}
return response;
}
public static class WebClientDevWrapper {
public static HttpClient wrapClient(HttpClient base) {
try {
SSLContext ctx = SSLContext.getInstance("TLS");
X509TrustManager tm = new X509TrustManager() {
@Override
public X509Certificate[] getAcceptedIssuers() {
return null;
}
@Override
public void checkClientTrusted(
java.security.cert.X509Certificate[] chain,
String authType)
throws java.security.cert.CertificateException {
}
@Override
public void checkServerTrusted(
java.security.cert.X509Certificate[] chain,
String authType)
throws java.security.cert.CertificateException {
}
};
ctx.init(null, new TrustManager[] { tm }, null);
SSLSocketFactory ssf = new SSLSocketFactory(ctx, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
ClientConnectionManager ccm = base.getConnectionManager();
SchemeRegistry sr = ccm.getSchemeRegistry();
sr.register(new Scheme("https", 443, ssf));
return new DefaultHttpClient(ccm, base.getParams());
} catch (Exception ex) {
ex.printStackTrace();
return null;
}
}
}

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