<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>cn.how2j</groupId>
  <artifactId>hutool</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>hutool</name>
  <description>hutool</description>
  	<dependencies>
	  	<dependency>
	    <groupId>cn.hutool</groupId>
	    	<artifactId>hutool-all</artifactId>
	    	<version>4.3.1</version>
	 	</dependency>
		<dependency>
		    <groupId>junit</groupId>
		    <artifactId>junit</artifactId>
		    <version>4.3.1</version>
		    <scope>test</scope>
		</dependency>
		<dependency>
		    <groupId>javax.mail</groupId>
		    <artifactId>mail</artifactId>
		    <version>1.4.7</version>
		</dependency>
		<dependency>
		    <groupId>com.google.zxing</groupId>
		    <artifactId>core</artifactId>
		    <version>3.3.1</version>
		</dependency>		
		<dependency>
		    <groupId>commons-net</groupId>
		    <artifactId>commons-net</artifactId>
		    <version>3.6</version>
		</dependency>		
	</dependencies>
</project>

package cn.how2j.test;

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;

import java.io.IOException;
import java.lang.annotation.Documented;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.lang.reflect.Method;

import org.junit.Test;

import cn.hutool.core.convert.Convert;
import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.ReflectUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.extra.ftp.Ftp;

public class TestFTP {

	@Test
	@Comment("上传下载")
	public void test1(){
		
		String localFile4Upload = "d:/test.jpg";
		String localFile4Download = "d:/test2.jpg";
		String remoteFolder = "/";
		String remoteFile = "test.jpg";
		String ftpServer = "28.212.18.5"; //这是无效的ip地址，请使用自己有效的ftp服务器ip地址
		String name = "ftpuser";
		String password = "password123";
		
		Ftp ftp = new Ftp(ftpServer,21,name,password);
		boolean success= ftp.upload(remoteFolder,remoteFile, FileUtil.file(localFile4Upload));
		p3("上传是否成功",success);
		
		ftp.download(remoteFolder, remoteFile, FileUtil.file(localFile4Download));
		
		p3("用于上传的文件大小", FileUtil.file(localFile4Upload).length());
		p3("下载下来之后的文件大小", FileUtil.file(localFile4Download).length());

		try {
			ftp.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	
    private String preComment = null;  
    private void c(String msg) {
        System.out.printf("\t备注：%s%n",msg);
    }
    private void p1(String type1, Object value1, String type2, Object value2) {
        p(type1, value1, type2, value2, "format1");
    }
    private void p2(String type1, Object value1, String type2, Object value2) {
        p(type1, value1, type2, value2, "format2");
    }
    private void p3(String type1, Object value1) {
        p(type1, value1, "", "", "format3");
    }
 
    private void p(String type1, Object value1, String type2, Object value2, String format) {
        try {
            throw new Exception();
        } catch (Exception e) {
             
            String methodName = getTestMethodName(e.getStackTrace());
            Method m =ReflectUtil.getMethod(this.getClass(), methodName);
            Comment annotation = m.getAnnotation(Comment.class);
            if(null!=annotation) {
                String comment= annotation.value();
                if(!comment.equals(preComment)) {
                    System.out.printf("%n%s 例子： %n%n",comment);
                    preComment = comment;
                }
                 
            }
        }
        int padLength = 12;
        type1=StrUtil.padEnd(type1,padLength,Convert.toSBC(" ").charAt(0));
        type2=StrUtil.padEnd(type2,padLength,Convert.toSBC(" ").charAt(0));
        if("format1".equals(format)) {
            System.out.printf("\t%s的:\t\"%s\" %n\t被转换为----->%n\t%s的 :\t\"%s\" %n%n",type1,value1, type2, value2);
        }
        if("format2".equals(format)) {
            System.out.printf("\t基于 %s:\t\"%s\" %n\t获取 %s:\t\"%s\"%n%n",type1,value1, type2, value2);
        }
        if("format3".equals(format)) {
            System.out.printf("\t%s:\t\"%s\" %n\t%n",type1,value1);
 
        }
    }
     
    private String getTestMethodName(StackTraceElement[] stackTrace) {
        for (StackTraceElement se : stackTrace) {
            String methodName = se.getMethodName();
            if(methodName.startsWith("test"))
                return methodName;
        }
        return null;
    }
 
    @Target({METHOD,TYPE})
    @Retention(RetentionPolicy.RUNTIME)
    @Inherited
    @Documented
    public @interface Comment {
         String value();
    }
}