data_fusion/DataFusion/src/com/zskk/control/ViewController.java

package com.zskk.control;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;

import com.jfinal.core.Controller;
import com.jfinal.kit.PropKit;
import com.jfinal.plugin.activerecord.ActiveRecordPlugin;
import com.jfinal.plugin.activerecord.Db;
import com.jfinal.plugin.activerecord.Record;
import com.jfinal.plugin.activerecord.dialect.SqlServerDialect;
import com.jfinal.plugin.druid.DruidPlugin;
import okhttp3.FormBody;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

public class ViewController extends Controller {

	private static final MediaType JSON_CODE = MediaType.get("application/json; charset=utf-8");

	private static final OkHttpClient OKHTTP_CLIENT = new OkHttpClient();

	/**
	 * 在被连接数据库执行sql语句
	 */
	public void executeSql() {
		try {
			List<Record> d = Db.use("connected").find(this.getPara("sqlstr"));
			this.renderJson(d);
		} catch (Exception e) {
			// TODO: handle exception
			this.renderText(e.toString());
		}
		
	}
	
	public void executeSqlFtp() {
		try {
			List<Record> d = Db.use("ftp").find(this.getPara("sqlstr"));
			this.renderJson(d);
		} catch (Exception e) {
			// TODO: handle exception
			this.renderText(e.toString());
		}
		
	}

	public void testConn() {
		try {
			DruidPlugin druidPluginConnected = createConnectedDruidPlugin();
            druidPluginConnected.start();
			// 配置ActiveRecord插件
			ActiveRecordPlugin arpConnected = new ActiveRecordPlugin("connected", druidPluginConnected);
			arpConnected.setDialect(new SqlServerDialect());
			arpConnected.start();

		} catch (Exception e) {
			// TODO: handle exception
			this.renderText(e.toString());
		}
	}
	
	public static DruidPlugin createConnectedDruidPlugin() {

		return new DruidPlugin(PropKit.get("jdbcUrl_connected"), PropKit.get("user_connected"),PropKit.get("password_connected").trim());
	}
	
	public void downloadFtpFile() {
		String remoteFileName =  this.getPara("a");
		String fileName = "";
        FTPClient ftpClient = new FTPClient();
        int reply;
        try {
            ftpClient.connect(PropKit.get("ftp_host"), PropKit.getInt("ftp_port"));
            ftpClient.login(PropKit.get("ftp_user"), PropKit.get("ftp_password"));
            reply = ftpClient.getReplyCode();
            if (!FTPReply.isPositiveCompletion(reply)) {
                ftpClient.disconnect();
                return;
            }
            ftpClient.setControlEncoding("UTF-8");
            ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
            ftpClient.enterLocalPassiveMode();
            
            FTPFile allFile[] = ftpClient.listFiles(remoteFileName);
            for (int i = 0; i < allFile.length; i++) {
            	 File localFile = new File("/home/zskk/FTP_FILE" + File.separatorChar + allFile[i].getName());
                 OutputStream os = new FileOutputStream(localFile);
                 //ftp中文名需要iso-8859-1字符
                 boolean flag2 = ftpClient.retrieveFile(remoteFileName+File.separatorChar+allFile[i].getName(), os);
                 if (!flag2) {
                 	fileName=fileName+ allFile[i].getName();

                     System.out.println("没有找到" + remoteFileName + "---该文件");
//                     localFile.delete();
                 } else {
                     System.out.println("=================== save success");
                 }
                 os.close();
			}
           
            ftpClient.logout();
            ftpClient.disconnect();
            renderText(fileName);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
	
	/**
	 * post请求
	 * @param url-请求地址
	 * @param map-参数集合
	 * @return
	 */
	private static String doPost(String url, Map<String, String> map) {
		FormBody.Builder builder = new FormBody.Builder();
		for (String key : map.keySet()) {
			builder.add(key, map.get(key));
		}

		RequestBody formBody = builder.build();

		Request request = new Request.Builder().url(url).post(formBody).build();
		
		try (Response response = OKHTTP_CLIENT.newCall(request).execute()) {
			if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
			String content = response.body().string();
			return content;
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		}
	}
	
	/**
	 * 日期字符串格式转换
	 * @param dateStr
	 * @return
	 */
	private Date parseStringToDate(String dateStr) {
		if (dateStr == null) {
			return new Date();
		}
		SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
	    Date date = null;
		try {
			date = sdf.parse(dateStr);
		} catch (ParseException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
        return date;
	}

	public static void main(String[] args) {
        Map<String,String> paramsMap=new HashMap<String,String>();
        paramsMap.put("institution_id", "44100001");

		String contentString = doPost("https://risserver3.pacsonline.cn/butt/getExam/butt/getExam", paramsMap);
		System.out.println(contentString);

	}
}