只关注main方法即可，下载到本地更改包名即可使用，如不需要插入数据库，可注释掉JDBC相关。api返回值：0工作日，1休息日，2节假日
package cn.com.ebidding; import net.sf.json.JSONObject; import org.apache.commons.httpclient.*; import org.apache.commons.httpclient.methods.GetMethod; import org.apache.commons.httpclient.params.HttpMethodParams; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import com.mysql.jdbc.Connection; import com.mysql.jdbc.PreparedStatement; import java.io.IOException; import java.sql.DriverManager; import java.sql.SQLException; import java.util.Calendar; /** * Created by liqun.chen on 2017/5/15. */ public class HttpUtil { /** * json 字符串 * @param url * @param param * @return */ public static String getSerchPersion(String url,String param){ /* 1 生成 HttpClinet 对象并设置参数 */ HttpClient httpClient = new HttpClient(); // 设置 Http 连接超时为5秒 httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(5000); /* 2 生成 GetMethod 对象并设置参数 */ GetMethod getMethod = new GetMethod(url); // 设置 get 请求超时为 5 秒 getMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 5000); // 设置请求重试处理，用的是默认的重试处理：请求三次 getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler()); String response = ""; /* 3 执行 HTTP GET 请求 */ try { int statusCode = httpClient.executeMethod(getMethod); /* 4 判断访问的状态码 */ if (statusCode != HttpStatus.SC_OK) { System.err.println("请求出错: "+ getMethod.getStatusLine()); } /* 5 处理 HTTP 响应内容 */ // HTTP响应头部信息，这里简单打印 Header[] headers = getMethod.getResponseHeaders(); for (Header h : headers) System.out.println(h.getName() + "------------ " + h.getValue()); // 读取 HTTP 响应内容，这里简单打印网页内容 byte[] responseBody = getMethod.getResponseBody();// 读取为字节数组 response = new String(responseBody, param); System.out.println("----------response:" + response); // 读取为 InputStream，在网页内容数据量大时候推荐使用 // InputStream response = getMethod.getResponseBodyAsStream(); } catch (HttpException e) { // 发生致命的异常，可能是协议不对或者返回的内容有问题 System.out.println("请检查输入的URL!"); e.printStackTrace(); } catch (IOException e) { // 发生网络异常 System.out.println("发生网络异常!"); e.printStackTrace(); } finally { /* 6 .释放连接 */ getMethod.releaseConnection(); } return response; } /** * post请求 * @param url * @param json * @return */ public static JSONObject doPost(String url,JSONObject json){ DefaultHttpClient client = new DefaultHttpClient(); HttpPost post = new HttpPost(url); JSONObject response = null; try { StringEntity s = new StringEntity(json.toString()); s.setContentEncoding("UTF-8"); s.setContentType("application/json");//发送json数据需要设置contentType post.setEntity(s); HttpResponse res = client.execute(post); if(res.getStatusLine().getStatusCode() == HttpStatus.SC_OK){ HttpEntity entity = res.getEntity(); String result = EntityUtils.toString(res.getEntity());// 返回json格式： try { response = JSONObject.fromObject(result); } catch (Exception e) { response=new JSONObject().accumulate("key", result.toString()); } } } catch (Exception e) { throw new RuntimeException(e); } return response; } private static Connection getConn() { String driver = "com.mysql.jdbc.Driver"; String url = "jdbc:mysql://localhost:3306/cec_dev"; String username = "root"; String password = "123456"; Connection conn = null; try { Class.forName(driver); //classLoader,加载对应驱动 conn = (Connection) DriverManager.getConnection(url, username, password); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } return conn; } private static int deleted( ) { Connection conn = getConn(); int i = 0; String sql = "DELETE FROM sys_holiday"; PreparedStatement pstmt; try { pstmt = (PreparedStatement) conn.prepareStatement(sql); i = pstmt.executeUpdate(); pstmt.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } return i; } private static int insert( String year,String m,String d,String holiday) { Connection conn = getConn(); int i = 0; String sql = "INSERT INTO sys_holiday (YEAR,MONTH,DAY,holiday) VALUES(?,?,?,?)"; PreparedStatement pstmt; try { pstmt = (PreparedStatement) conn.prepareStatement(sql); pstmt.setString(1, year); pstmt.setString(2, m); pstmt.setString(3, d); pstmt.setString(4, holiday); i = pstmt.executeUpdate(); pstmt.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } return i; } //调用 public static void main(String arg[]) throws Exception { deleted(); Calendar now =Calendar.getInstance(); now.set(now.get(now.YEAR), 01, 01); for (int i = 0; i < 400; i++) { String y=String.valueOf(now.get(now.YEAR)); String m=String.valueOf(now.get(now.MONTH)+1); String d=String.valueOf(now.get(now.DATE)); if (m.length()==1) { m="0"+m; } if (d.length()==1) { d="0"+d; } String url = "http://tool.bitefu.net/jiari/?d="+y+m+d; System.out.println(url); JSONObject params = new JSONObject(); //post 请求 JSONObject jsonObject = doPost(url,params); System.out.println(jsonObject.toString()); System.out.println(jsonObject.get("key").toString()); insert(y, m, d,jsonObject.get("key").toString() ); now.add(now.DATE, 1); } } }