java实现小i机器人api接口调用示例

package com.weixin.util;

import java.io.ioexception;
import java.util.random;
import org.apache.commons.codec.binary.hex;
import org.apache.commons.codec.digest.digestutils;
import org.apache.commons.httpclient.httpclient;
import org.apache.commons.httpclient.httpexception;
import org.apache.commons.httpclient.methods.postmethod;
import org.apache.commons.httpclient.params.httpmethodparams;
import org.apache.commons.lang.stringutils;

public class xiaoi {
 private final static string app_key = "*****";
 private final static string app_secret = "****";

 public string tess(string key, string names) {
  string realm = "xiaoi.com";
  string method = "post";
  string uri = "/robot/ask.do";
  byte[] b = new byte[20];
  new random().nextbytes(b);
  string nonce = new string(hex.encodehex(b));
  string ha1 = digestutils.shahex(stringutils.join(new string[] {
    app_key, realm, app_secret }, ":"));
  string ha2 = digestutils.shahex(stringutils.join(new string[] { method,
    uri }, ":"));
  string sign = digestutils.shahex(stringutils.join(new string[] { ha1,
    nonce, ha2 }, ":"));

  string str = null;

  httpclient hc = new httpclient();
  postmethod pm = new postmethod("http://nlp.xiaoi.com/robot/ask.do");
  pm.getparams().setparameter(httpmethodparams.http_content_charset,
    "utf-8");
  pm.addrequestheader("x-auth", "app_key=\"7hhk65oe2ngy\", nonce=\""
    + nonce + "\", signature=\"" + sign + "\"");
  pm.setparameter("platform", "weixin");
  pm.setparameter("type", "0");
  pm.setparameter("userid", names);
  pm.setparameter("question", key);
  int re_code;
  try {
   re_code = hc.executemethod(pm);
   if (re_code == 200) {
    str = pm.getresponsebodyasstring();
   }
  } catch (httpexception e) {
   // todo auto-generated catch block
   e.printstacktrace();
  } catch (ioexception e) {
   // todo auto-generated catch block
   e.printstacktrace();
  }
  return str;
 }
}