例如：我使用的URL是https://bbs.csdn.net?client_id=10333&user=test，
localtion中也是这个https://bbs.csdn.net?client_id=10333&user=test
我试了直接使用curl可以返回json
我的post方法：
public static StringBuilder post(String url, Object data, String encoding) {
log.info("HttpClient post start => "+url);
CloseableHttpResponse response = null;
HttpPost httpPost = null;
HttpHost httpHost = null;
StringBuilder responseEntity = null;
String strings = "";
URL _url = new URL(url);
httpPost = new HttpPost(url);
httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");
if(!Stringer.isNullOrEmpty(data)){
log.debug("HttpClient post url => "+url+", data:"+JSON.toJSONString(data));
if (data instanceof Map) {
// Map方式传参处理
Map<String,String> params = (Map<String,String>) data;
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
if (!Stringer.isNullOrEmpty(data)) {
Set<String> keySet = params.keySet();
for (String key : keySet) {
nvps.add(new BasicNameValuePair(key, params.get(key)));
}
}
httpPost.setEntity(new UrlEncodedFormEntity(nvps, encoding));
} else if(data instanceof String){
// String方式传参处理
strings = (String)data;
strings = Stringer.nullToEmpty(strings);
ByteArrayEntity reqEntity = new ByteArrayEntity(strings.getBytes(encoding));
reqEntity.setContentEncoding(encoding);
httpPost.setEntity(reqEntity);
}
}
httpPost.setConfig(defaultRequestConfig);
httpHost = new HttpHost(_url.getHost(),_url.getPort());
response = httpClient.execute(httpHost,httpPost);
if(!Stringer.isNullOrEmpty(response)){
log.info("2--HttpClient response => "+response);
log.info("3--HttpClient StatusCode => "+response.getStatusLine().getStatusCode());
/*if (response.getStatusLine().getStatusCode() != 200) {
return null;
}*/
String locationUrl=response.getLastHeader("location").getValue();
log.info("HttpClient locationUrl => "+locationUrl);
log.info("4--HttpClient StatusCode => "+response.getStatusLine().getStatusCode());
if (response.getStatusLine().getStatusCode() == 302) {
Header header = response.getFirstHeader("location"); // 跳转的目标地址是在 HTTP-HEAD上
String newuri = header.getValue(); // 这就是跳转后的地址，再向这个地址发出新申请
System.out.println(newuri);
httpPost = new HttpPost(newuri);
httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");
response = httpClient.execute(httpHost,httpPost);
int code = response.getStatusLine().getStatusCode();
locationUrl=response.getLastHeader("location").getValue();
log.info("5--HttpClient new Code => "+code);
log.info("6--HttpClient locationUrl => "+locationUrl);
}
responseEntity = new StringBuilder();
responseEntity.append(EntityUtils.toString(response.getEntity(), encoding));
return responseEntity;
}
return null;
}curl命令样例：
curl -k -d "client_id=10333&user=test" "https://bbs.csdn.net"
大神们帮忙看看吧
