- /*********************************这是请求的参数处理*************************************************/
- //示例里面需要导入的包如果你没有,请自行去网上下载,其他异常可留言或在群里提问
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.InputStream;
- import java.util.HashMap;
- import java.util.Map;
- import net.sf.json.JSONObject;
- import org.apache.commons.codec.binary.Base64;
- import org.silk.net.PureNetUtil;
- public class CardAPIDemo {
- private static final String KEY="****f6e8cda2876336a7f3cd2dcc****";//这里替换成你的key
- private static final String URL="http://op.juhe.cn/hanvon/bcard/query";
- private static final String PATH="D:\\\\1.jpg";//这里替换成你的图片地址
- public static void main(String[] args) {
- JSONObject obj=JSONObject.fromObject(invoke());
- System.out.println("result==>"+obj.getString("result"));
- }
- public static String invoke() {
- Map<String,String>params=new HashMap<String,String>();
- File file=new File(PATH);
- InputStream in;
- String html=null;
- try {
- in = new FileInputStream(file);
- int i = in.available(); // 得到文件大小
- byte data[] = new byte[i];
- in.read(data); // 读数据
- in.close();
- params.put("key", KEY);
- Base64 base64=new Base64(true);
- params.put("image",base64.encodeToString(data));//image参数可不是你的图片地址
- html= PureNetUtil.post(URL, params);//这里用到了一个我自己封装的网络请求类,见下文
- } catch (Exception e) {
- e.printStackTrace();
- }
- return html;
- }
- }
- /***********************************这是上面用到的网络请求工具类*************************************/
- import java.io.BufferedReader;
- import java.io.BufferedWriter;
- import java.io.InputStream;
- import java.io.InputStreamReader;
- import java.io.OutputStream;
- import java.io.OutputStreamWriter;
- import java.net.HttpURLConnection;
- import java.net.URL;
- import java.text.SimpleDateFormat;
- import java.util.ArrayList;
- import java.util.Date;
- import java.util.List;
- import java.util.Map;
- import java.util.zip.GZIPInputStream;
- import org.apache.http.HttpResponse;
- import org.apache.http.NameValuePair;
- import org.apache.http.client.HttpClient;
- import org.apache.http.client.entity.UrlEncodedFormEntity;
- import org.apache.http.client.methods.HttpPost;
- import org.apache.http.impl.client.DefaultHttpClient;
- import org.apache.http.message.BasicNameValuePair;
- public class PureNetUtil {
- /**
- * 用来输出现在时间
- * @return
- */
- public static String currentTime(){
- SimpleDateFormat sdformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//24小时制
- return sdformat.format(new Date());
- }
- /**
- * get方法直接调用post方法
- * @param url 网络地址
- * @return 返回网络数据
- */
- public static String get(String url){
- return post(url,null,null);
- }
- public static String get(String url,String charset){
- return post(url,null,charset);
- }
- /**
- * 设定post方法获取网络资源,如果参数为null,实际上设定为get方法
- * @param url 网络地址
- * @param param 请求参数键值对
- * @return 返回读取数据
- */
- public static String post(String url,Map<String,String>param,String outCharset){
- if(outCharset==null||outCharset.equals("")){
- outCharset="utf-8";
- }
- HttpURLConnection conn=null;
- try {
- URL u=new URL(url);
- conn=(HttpURLConnection) u.openConnection();
- conn.setRequestProperty("User-agent","Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36");
- conn.setRequestProperty("Content-Type", "application/json;charset=utf-8");
- conn.setRequestProperty("Accept", "application/json;charset=utf-8");
- conn.setConnectTimeout(60000);
- conn.setReadTimeout(60000);
- StringBuffer sb=null;
- if(param!=null){//如果请求参数不为空
- sb=new StringBuffer();
- /*A URL connection can be used for input and/or output. Set the DoOutput
- * flag to true if you intend to use the URL connection for output,
- * false if not. The default is false.*/
- //默认为false,post方法需要写入参数,设定true
- conn.setRequestMethod("POST");
- conn.setDoOutput(true);
- //设定post方法,默认get
- //获得输出流
- OutputStream out=conn.getOutputStream();
- //对输出流封装成高级输出流
- BufferedWriter writer=new BufferedWriter(new OutputStreamWriter(out));
- //将参数封装成键值对的形式
- for(Map.Entry<String, String> s:param.entrySet()){
- sb.append(s.getKey()).append("=").append(s.getValue()).append("&");
- }
- System.out.println("para:"+sb.deleteCharAt(sb.toString().length()-1).toString());
- writer.write(sb.deleteCharAt(sb.toString().length()-1).toString());
- writer.close();//如果忘记关闭输出流将造成参数未完全写入的情况
- sb=null;
- }
- conn.connect();//建立连接
- sb=new StringBuffer();
- //获取连接状态码
- int recode=conn.getResponseCode();
- BufferedReader reader=null;
- if(recode==404){
- }
- if(recode==200){
- //Returns an input stream that reads from this open connection
- //从连接中获取输入流
- InputStream in=conn.getInputStream();
- String encoding=conn.getContentEncoding();
- if (encoding != null && encoding.equalsIgnoreCase("gzip")) {
- GZIPInputStream gis = new GZIPInputStream(in);
- reader=new BufferedReader(new InputStreamReader(gis,outCharset));
- for(String str=reader.readLine();str!=null;str=reader.readLine()){
- sb.append(str).append(System.getProperty("line.separator"));//原网页的换行加上
- }
- }else{
- reader=new BufferedReader(new InputStreamReader(in,outCharset));
- for(String str=reader.readLine();str!=null;str=reader.readLine()){
- sb.append(str).append(System.getProperty("line.separator"));//原网页的换行加上
- }
- }
- //关闭输入流
- reader.close();
- if (sb.toString().length() == 0) {
- return null;
- }
- return sb.toString().substring(0,
- sb.toString().length() - System.getProperty("line.separator").length());
- }
- } catch (Exception e) {
- e.printStackTrace();
- return null;
- }finally{
- if(conn!=null)//关闭连接
- conn.disconnect();
- }
- return null;
- }
- public static String post(String url,Map<String, String> param){
- HttpClient httpclient = new DefaultHttpClient();
- HttpPost httppost = new HttpPost(url);
- StringBuffer sb=null;
- try {
- List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(param.size());
- if(param!=null){
- for(Map.Entry map:param.entrySet()){
- nameValuePairs.add(new BasicNameValuePair(map.getKey().toString(), map.getValue().toString()));
- }
- }
- httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
- HttpResponse response=httpclient.execute(httppost);
- InputStream in=response.getEntity().getContent();
- sb=new StringBuffer();
- BufferedReader reader=new BufferedReader(new InputStreamReader(in));
- for(String str=reader.readLine();str!=null;str=reader.readLine()){
- sb.append(str).append(System.getProperty("line.separator"));//原网页的换行加上
- }
- reader.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- return sb.toString();
- }
- /**
- * 这个方法主要是用来直接向服务器传输参数,比如已经加密的数据,直接传到服务器
- * @param url
- * @param data
- * @return
- */
- public static String post(String url,byte[] data ){
- HttpURLConnection conn=null;
- try {
- URL u=new URL(url);
- conn=(HttpURLConnection) u.openConnection();
- conn.setRequestProperty("User-agent","Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36");
- StringBuffer sb=null;
- sb=new StringBuffer();
- /*A URL connection can be used for input and/or output. Set the DoOutput
- * flag to true if you intend to use the URL connection for output,
- * false if not. The default is false.*/
- //默认为false,post方法需要写入参数,设定true
- conn.setRequestMethod("POST");
- conn.setDoOutput(true);
- //设定post方法,默认get
- //获得输出流
- OutputStream out=conn.getOutputStream();
- //对输出流封装成高级输出流
- BufferedWriter writer=new BufferedWriter(new OutputStreamWriter(out));
- //将参数封装成键值对的形式
- writer.write(new String(data));
- writer.close();//如果忘记关闭输出流将造成参数未完全写入的情况
- conn.connect();//建立连接
- //获取连接状态码
- int recode=conn.getResponseCode();
- BufferedReader reader=null;
- if(recode==404){
- System.out.println("404===>"+url);
- }
- if(recode==200){
- //Returns an input stream that reads from this open connection
- //从连接中获取输入流
- InputStream in=conn.getInputStream();
- String encoding=conn.getContentEncoding();
- if (encoding != null && encoding.equalsIgnoreCase("gzip")) {
- GZIPInputStream gis = new GZIPInputStream(in);
- reader=new BufferedReader(new InputStreamReader(gis));
- for(String str=reader.readLine();str!=null;str=reader.readLine()){
- sb.append(str).append(System.getProperty("line.separator"));//原网页的换行加上
- }
- }else{
- reader=new BufferedReader(new InputStreamReader(in));
- for(String str=reader.readLine();str!=null;str=reader.readLine()){
- sb.append(str).append(System.getProperty("line.separator"));//原网页的换行加上
- }
- }
- //关闭输入流
- reader.close();
- if (sb.toString().length() == 0) {
- return null;
- }
- return sb.toString().substring(0,
- sb.toString().length() - System.getProperty("line.separator").length());
- }
- } catch (Exception e) {
- e.printStackTrace();
- return null;
- }finally{
- if(conn!=null)//关闭连接
- conn.disconnect();
- }
- return null;
- }
- }
- //该片段来自于http://www.codesnippet.cn/detail/1101201614407.html
来源: http://www.codesnippet.cn/detail/1101201614407.html