HttpClient的HttpGet请求乱码问题解决
来源：互联网 发布：全国环境监测实时数据 编辑：程序博客网 时间：2024/04/29 17:05
自动解析页面编码，并转换为相应编码的字符
public static String httpGet(String url) throws ClientProtocolException, IOException, URISyntaxException { HttpClient httpclient = new DefaultHttpClient(); String result = ""; try { // 连接超时 httpclient.getParams().setParameter( CoreConnectionPNames. CONNECTION_TIMEOUT, 5000); // 读取超时 httpclient.getParams().setParameter( CoreConnectionPNames. SO_TIMEOUT, 5000); HttpGet hg = new HttpGet (url); //模拟浏览器 hg.addHeader( "User-Agent", "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31"); String charset = "UTF-8"; hg.setURI( new java.net.URI(url)); HttpResponse response = httpclient.execute(hg); HttpEntity entity = response.getEntity(); if (entity != null) { charset = getContentCharSet(entity); // 使用EntityUtils的toString方法，传递编码，默认编码是ISO-8859-1 result = EntityUtils.toString(entity, charset); } } finally { httpclient.getConnectionManager().shutdown(); } return result; } /** * 默认编码utf -8 * Obtains character set of the entity, if known. * * @param entity must not be null * @return the character set, or null if not found * @throws ParseException if header elements cannot be parsed * @throws IllegalArgumentException if entity is null */ public static String getContentCharSet(final HttpEntity entity) throws ParseException { if (entity == null) { throw new IllegalArgumentException("HTTP entity may not be null"); } String charset = null; if (entity.getContentType() != null) { HeaderElement values[] = entity.getContentType().getElements(); if (values.length > 0) { NameValuePair param = values[0].getParameterByName("charset" ); if (param != null) { charset = param.getValue(); } } } if(StringUtils.isEmpty(charset)){ charset = "UTF-8"; } return charset; }
