新浪微博短链接API 接口文档地址: http://open.weibo.com/wiki/Short_url/shorten。
用到的Java jar包:
httpclient-4.5.jar,httpclient-cache-4.5.jar,httpclient-win-4.5.jar,httpcore-4.4.1.jar,httpmime-4.5.jar,fastjson-1.2.2.jar。
下载地址:http://download.csdn.net/detail/litter_fisher/9923346。
package space;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
public class TestWeibo {
static String actionUrl = "http://api.t.sina.com.cn/short_url/shorten.json";
static String APPKEY = "2815391962,31641035,3271760578,3925598208";
public static void main(String[] args) {
String longUrl = "https://www.baidu.com";
TestWeibo tw = new TestWeibo();
System.out.println(tw.sinaShortUrl(longUrl));
}
public String sinaShortUrl(String longUrl){
longUrl = java.net.URLEncoder.encode(longUrl);
String appkey = APPKEY;
String[] sourceArray = appkey.split(",");
for(String key:sourceArray){
String shortUrl = sinaShortUrl(key,longUrl);
if(shortUrl != null){
return shortUrl;
}
}
return null;
}
public String sinaShortUrl(String source, String longUrl){
String result = sendPost(actionUrl, "url_long="+longUrl+"&source="+source);
if(result==null || "".equals(result)){
return "";
}
JSONArray jsonArr = JSON.parseArray(result);
JSONObject json = JSON.parseObject(jsonArr.get(0).toString());
String ret = json.get("url_short").toString();
return ret;
}
/**
* 向指定 URL 发送POST方法的请求
* @param url 发送请求的 URL
* @param param 请求参数,请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
*/
public static String sendPost(String url, String param) {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realUrl = new URL(url);
// 打开和URL之间的连接
URLConnection conn = realUrl.openConnection();
// 设置通用的请求属性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 发送POST请求必须设置如下两行
conn.setDoOutput(true);
conn.setDoInput(true);
// 获取URLConnection对象对应的输出流
out = new PrintWriter(conn.getOutputStream());
// 发送请求参数
out.print(param);
// flush输出流的缓冲
out.flush();
// 定义BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送 POST 请求出现异常!"+e);
e.printStackTrace();
}
//使用finally块来关闭输出流、输入流
finally{
try{
if(out!=null){
out.close();
}
if(in!=null){
in.close();
}
}
catch(IOException ex){
ex.printStackTrace();
}
}
return result;
}
}
附注:
appkey来源及参考链接:
2815391962 使用新浪API生成短连接(http://www.cnblogs.com/Jimmy-pan/p/5784611.html),
31641035 新浪短链接API接口示例(http://blog.csdn.net/jiangzunshao/article/details/53439172),
3271760578 新浪短网址API接口(https://www.douban.com/note/249723561)。