HttpEntity multipart = builder.build();

httppost.setEntity(multipart);

long start = System.currentTimeMillis();

// 發送請求

response = httpclient.execute(httppost);

long end = System.currentTimeMillis();

System.out.println("查詢upsfreight消耗的時間是(毫秒):" + (end - start));

start = System.currentTimeMillis();

HttpEntity entity = response.getEntity();

String html = EntityUtils.toString(entity, "utf-8");

end = System.currentTimeMillis();

System.out.println("轉換時間:" + (end - start));

String html = EntityUtils.toString(entity, "utf-8");

這一行代碼要執行很久 4-9s，我有什么辦法把他加快嗎

下面是EntityUtils.toString()的方法，包為

public static String toString(HttpEntity entity, Charset defaultCharset) throws IOException, ParseException {

Args.notNull(entity, "Entity");

InputStream instream = entity.getContent();

if (instream == null) {

return null;

} else {

try {

Args.check(entity.getContentLength() <= 2147483647L, "HTTP entity too large to be buffered in memory");

int i = (int)entity.getContentLength();

if (i < 0) {

i = 4096;

}

Charset charset = null;

try {

ContentType contentType = ContentType.get(entity);

if (contentType != null) {

charset = contentType.getCharset();

}

} catch (UnsupportedCharsetException var13) {

if (defaultCharset == null) {

throw new UnsupportedEncodingException(var13.getMessage());

}

}

if (charset == null) {

charset = defaultCharset;

}

if (charset == null) {

charset = HTTP.DEF_CONTENT_CHARSET;

}

Reader reader = new InputStreamReader(instream, charset);

CharArrayBuffer buffer = new CharArrayBuffer(i);

char[] tmp = new char[1024];

int l;

while((l = reader.read(tmp)) != -1) {

buffer.append(tmp, 0, l);

}

String var9 = buffer.toString();

return var9;

} finally {

instream.close();

}

}

}