视频上传模块java代码,java实现视频上传功能

怎么用java/web代码播放本地视频

在后台,java中根据路径找目录下所有的视频文件,然后把名字和url返回到前台,前台显示列表,点击后打开播放页,网上很多flash制作的播放器,嵌入到网页中并把视频url传递进去就可以了。博客noday.net我若有时间就写个例子

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用java实现对视频添加水印的代码或思路

package com.jc.ts.services;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Image;

import java.awt.image.BufferedImage;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import javax.imageio.ImageIO;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.sun.image.codec.jpeg.ImageFormatException;

import com.sun.image.codec.jpeg.JPEGCodec;

import com.sun.image.codec.jpeg.JPEGImageEncoder;

/**

*添加图片水印的服务类

* */

public class WaterMark {

/**

* @param sizeContext添加水印文字

* @param request 请求流对象

* @param request 响应流对象

* */

@SuppressWarnings("deprecation")

public static void createMarkSize(String sizeContext,HttpServletRequest request,HttpServletResponse response) {

try {

String path=request.getRealPath(request.getServletPath());

FileInputStream in=new FileInputStream(path);

Image src=ImageIO.read(in);

int w=src.getWidth(null);

int h=src.getHeight(null);

BufferedImage img=new BufferedImage(w,h,BufferedImage.TYPE_INT_RGB);//构建画板

Graphics g=img.getGraphics();//得到画笔

g.drawImage(src,0,0,w,h,null);//把源图片写入画板

g.setColor(Color.red);

g.drawString(sizeContext,10,5); // 添加文字

g.dispose();//生成图片

JPEGImageEncoder e=JPEGCodec.createJPEGEncoder(response.getOutputStream());

e.encode(img);

response.getOutputStream().close();

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (ImageFormatException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

/**

* @param localPath 添加水印LOGO路径

* @param request 请求流对象

* @param request 响应流对象

**/

@SuppressWarnings("deprecation")

public static void createMarkLogo(String localPath,HttpServletRequest request,HttpServletResponse response) {

try {

FileInputStream file=new FileInputStream(localPath);

Image fimg=ImageIO.read(file);

int fw=fimg.getWidth(null);

int fh=fimg.getHeight(null);

String path=request.getRealPath(request.getServletPath());

FileInputStream in=new FileInputStream(path);

Image src=ImageIO.read(in);

int w=src.getWidth(null);

int h=src.getHeight(null);

BufferedImage img=new BufferedImage(w,h,BufferedImage.TYPE_INT_RGB);//构建画板

Graphics g=img.getGraphics();//得到画笔

g.drawImage(src,0,0,w,h,null);//把原图片写入画板

g.drawImage(fimg,w-20,h-15,fw,fh,null);//把水印图片写入画板

g.dispose();//生成图片

JPEGImageEncoder e=JPEGCodec.createJPEGEncoder(response.getOutputStream());

e.encode(img);

response.getOutputStream().close();

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (ImageFormatException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

/**

* @param localPath 添加水印图片路径

* @param request 请求流对象

* @param request 响应流对象

* @param width 水印图片的宽度

* @param height 水印图片的长度

**/

@SuppressWarnings("deprecation")

public static void createMarkLogo(String localPath,HttpServletRequest request,HttpServletResponse response,int width,int height) {

try {

FileInputStream file=new FileInputStream(localPath);

Image fimg=ImageIO.read(file);

int fw=fimg.getWidth(null);

int fh=fimg.getHeight(null);

String path=request.getRealPath(request.getServletPath());

FileInputStream in=new FileInputStream(path);

Image src=ImageIO.read(in);

int w=src.getWidth(null);//w为你过滤图片的宽度

int h=src.getHeight(null);//h为你过滤图片的长度

BufferedImage img=new BufferedImage(w+width,h+height,BufferedImage.TYPE_INT_RGB);//构建画板(画板的宽度为两个图片之和)

Graphics g=img.getGraphics();//得到画笔

g.drawImage(src,0,0,w,h,null);//把原图片写入画板

g.drawImage(fimg,width,height,fw,fh,null);//把水印图片写入画板

g.dispose();//生成图片

JPEGImageEncoder e=JPEGCodec.createJPEGEncoder(response.getOutputStream());

e.encode(img);

response.getOutputStream().close();

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (ImageFormatException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

注意第三个方法的注释地方g.drawImage(fimg,width,height,fw,fh,null);根据参数你在调调(放原图下面的)

过滤器调用

package com.jc.ts.filter;

import java.io.IOException;

import javax.servlet.Filter;

import javax.servlet.FilterChain;

import javax.servlet.FilterConfig;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.jc.ts.services.WaterMark;

public class WaterFilter implements Filter {

public void destroy() {

// TODO Auto-generated method stub

}

public void doFilter(ServletRequest arg0, ServletResponse arg1,

FilterChain arg2) throws IOException, ServletException {

HttpServletRequest request=(HttpServletRequest)arg0;

HttpServletResponse response=(HttpServletResponse)arg1;

//WaterMark.createMarkSize("南京ts", request, response);

//WaterMark.createMarkLogo("D:\\workspace\\mybook\\WebRoot\\images\\logo\\book.jpg", request, response);

WaterMark.createMarkLogo("D:\\workspace\\mybook\\WebRoot\\images\\logo\\book.jpg", request, response,20,30);

//注意路径为绝对路径且三个效果不能同时执行

}

public void init(FilterConfig arg0) throws ServletException {

// TODO Auto-generated method stub

}

}

web.xml配置(写在servlet上面)

filter

descriptionThis is the description of my J2EE component/description

display-nameThis is the display name of my J2EE component/display-name

filter-nameWaterFilter/filter-name

filter-classcom.jc.ts.filter.WaterFilter/filter-class

/filter

谁能给我一个JAVA电子相册或音乐播放器的代码啊 急急急

我自己做过一个类似的电子相册,但功能很不够全面,给你参考下...

import java.awt.*;

import java.awt.event.*;

import java.applet.*;

public class img4 extends Applet

{

static Button btn1,btn2,btn3,btn4,btn5;

public void init()

{

setBackground(Color.cyan);

setVisible(true);

setLayout(null);

img4cvs cvs=new img4cvs();

btn1=new Button("下一页");

btn2=new Button("上一页");

btn4=new Button("自动播放");

btn5=new Button("停止");

add(btn1);

add(btn2);

add(btn4);

add(btn5);

add(cvs);

btn2.setBounds(550,60,60,30);

btn1.setBounds(550,120,60,30);

btn4.setBounds(550,180,60,30);

btn5.setBounds(550,240,60,30);

cvs.setBounds(30,30,500,400);

btn1.addActionListener(cvs);

btn2.addActionListener(cvs);

btn4.addActionListener(cvs);

btn5.addActionListener(cvs);

validate();

}

class Backcolor extends Thread

{

public void run()

{int j=0;int m=0;int n=0;

while(true)

{

try{

if(j255m255n255)

{

j++;

sleep(100);

Color col1=new Color(j,m,n);

setBackground(col1); }

else if(j==255m255)

{

m++;

sleep(100);

Color col2=new Color(j,m,n);

setBackground(col2); }

else if(j==255m==255n255)

{

n++;

sleep(100);

Color col3=new Color(j,m,n);

setBackground(col3);}

else if(j==255m==255n==255)

{

j=55;

m=55;

n=55;

}

}

catch(InterruptedException e){}

}

}

}

public void start()

{

Backcolor thread2=new Backcolor();

thread2.start();

}

}

class img4cvs extends Canvas implements ActionListener

{

Image[] img;

int pg=0;

volatile boolean pleaseStop;

//String FONTS="Serif";

//String TEXT="我们很性感2!!";

img4cvs()

{

img=new Image[12];

Toolkit tl=getToolkit();

for(int i=0;i=11;i++)

{

img[i]=tl.getImage("img0"+i+".JPG");

}

}

class Play extends Thread

{

public void run()

{

while(!pleaseStop)

{

try{

pg++;

if(pg11){pg=0;}

sleep(1500);

}

catch(InterruptedException e){}

repaint();

}

}

}

public void actionPerformed(ActionEvent e)

{

Play thread=new Play();

if(e.getSource()==img4.btn1)

{

pg++;

if(pg11){pg=0;}

repaint();

}

else if(e.getSource()==img4.btn2)

{

pg--;

if(pg0){pg=11;}

repaint();

}

else if(e.getSource()==img4.btn4)

{

pleaseStop=false;

thread.start();

}

else if(e.getSource()==img4.btn5)

{

pleaseStop=true;

}

}

public void paint(Graphics g)

{

/*g.setColor(Color.black);

g.setFont(new Font(FONTS,Font.BOLD+Font.ITALIC,20));

g.drawString(TEXT,0,500);*/

g.drawImage(img[pg],0,0,500,400,this);

}

}

/*

applet code="img4.class" width=650 height=500

/applet

*/

谁知道如何用纯JAVA代码播放视频文件(可以播放一种视频文件,如mp4,就可以了)

你好!我们所说的mp4仅仅只是一种视频封装格式,里面的视频流却有各种编码格式!就像瓶子装水一样,“瓶子”有各种形状,如mp4 avi wmv rmvb等等…而其中装的是什么液体就不一定了!所以,看似都是.mp4文件,它的编码格式可能是H.246编码,也可能是...

完整的Java视频教程

Docker视频免费下载

链接:

提取码:1r9g

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怎样用Java代码上传文件到Nexus服务器

common-fileupload是jakarta项目组开发的一个功能很强大的上传文件组件

下面先介绍上传文件到服务器(多文件上传):

import javax.servlet.*;

import javax.servlet.http.*;

import java.io.*;

import java.util.*;

import java.util.regex.*;

import org.apache.commons.fileupload


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