不及格的程序员-八神: Java

Java输出图像水印文字

Fri, 28 Jul 2006 07:30:05 GMT

<%@ page autoFlush="false"  import="java.awt.*,java.awt.image.*,com.sun.image.codec.jpeg.*,java.util.*"%>
<%
    String ImageStr = request.getParameter("ID_Text");
    if(ImageStr==null || ImageStr.equals(""))
    {
        response.setContentType("text/html; charset=gb2312");
 %>
<HTML>
 <HEAD>
  <title>不及格的程序员－八神
  <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
 </HEAD>
 <body>
  <form id="Form1" method="post">
    <input type="text" id="ID_Text" name=ID_Text>
    <input type=submit value="GO">
 <a href="index.jsp">index.html
  </form>
 </body>
< 

<%
       }
       else
       {
        out.clear();
        response.setContentType("image/jpeg");
        response.addHeader("pragma","NO-cache");
        response.addHeader("Cache-Control","no-cache");
        response.addDateHeader("Expries",0);
        int width=800, height=600;
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics g = image.getGraphics();
		
        //以下填充背景颜色
        //g.setColor(Color.lightGray);
        //g.fillRect(0, 0, width, height);
		//javax.swing.ImageIcon jpg = new javax.swing.ImageIcon(ImageStr);
		java.io.File file = new java.io.File(request.getRealPath(ImageStr));
	
		java.io.BufferedInputStream bufferIS = new java.io.BufferedInputStream(new java.io.FileInputStream(file));
		byte[] bufferByte = new byte[(int)file.length()];
		System.out.println(bufferIS.read(bufferByte, 0, (int)file.length()));
		javax.swing.ImageIcon jpg = new javax.swing.ImageIcon(bufferByte);

		g.drawImage(jpg.getImage(),0,0,width,height, null);
		/**/
        String random="random";
        //以下设置前景色
        //g.setColor(Color.BLACK);
        g.drawString("Http://www.Wawa.com",10,20);
        g.drawString(new String("Author:八神奄[abcsex@sohu.com]".getBytes("iso-8859-1")),10,40);
        g.drawLine(10,50,290,50);
		g.setFont(new java.awt.Font("楷书-gb2312",0,18));
        g.drawString(new String(ImageStr.getBytes("iso-8859-1")),10,70);
		/**/
        g.dispose();
        ServletOutputStream outStream = response.getOutputStream();
        JPEGImageEncoder encoder =JPEGCodec.createJPEGEncoder(outStream);
        encoder.encode(image);
        outStream.close();
    }

%>

Java JNI 本地调用交换鼠标左右键

Wed, 26 Jul 2006 05:12:57 GMT

星期三天气：多云

以前写的我在单位习惯使用左手鼠标了同事们用着不方便所以

public class SwapMouseButton{
 
 static{
  System.loadLibrary("SwapMouseButton");
 } 

 private native void swap(boolean flag);
 private native String getString();
 
 public static void main(String[] args){
  SwapMouseButton oSMB = new SwapMouseButton();
  if(args.length==1){
   if(args[0].equals("true"))
    oSMB.swap(true);
   if(args[0].equals("false"))
    oSMB.swap(false);
  }
  
 }
}

使用 javah 编译该类生成 SwapMouseButton.h

/* DO NOT EDIT THIS FILE - it is machine generated */
#include <JNI.H>
/* Header for class SwapMouseButton */

#ifndef _Included_SwapMouseButton
#define _Included_SwapMouseButton
#ifdef __cplusplus
extern "C" {
#endif
/*
 * Class:     SwapMouseButton
 * Method:    swap
 * Signature: (Z)V
 */
JNIEXPORT void JNICALL Java_SwapMouseButton_swap
  (JNIEnv *, jobject, jboolean);

/*
 * Class:     SwapMouseButton
 * Method:    getString
 * Signature: ()Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL Java_SwapMouseButton_getString
  (JNIEnv *, jobject);

#ifdef __cplusplus
}
#endif
#endif

再写一个本地调用 c++文件：SwapMouseButton.cpp 编译成 dll

#include <WINDOWS.H>
#include <IOSTREAM>
#include "SwapMouseButton.h"

using namespace std;

JNIEXPORT void JNICALL Java_SwapMouseButton_swap(JNIEnv* JEnv, jobject obj, jboolean flag){
    SwapMouseButton(flag);
    cout << "Swaped Sucess." << endl;
}

int main(){
    return 0;
}

运行java 程序 就可以了。

死Hibernate

Fri, 30 Dec 2005 08:23:36 GMT

星期五　天气：晴

一如即往　早上６点２０　

早上与燕子起来后　突然发现外面地上有一层小雪

呵呵　是昨晚上　下的

深入浅出Hibernate　呵呵　简直是垃圾

看看它们的几个作者吧　夏昕　曹晓钢　唐勇

书的开头　简简单单　地拿　设计模试　还吓虎　初学者

而书的内容　简直白痴　错误的　印刷　

一般人　是不会　弄明白　那些配置的

下载了一堆ｊａｒ　文件后　我终于调通它了

呵呵　这个太失败了　各种ｊａｒ文件　光版本的问题　就让你忙火一陈了

去死吧　Hibernate　我想总有一天没人想用你的话　一定是那本书造成的　呵呵　娃是好娃啊

Ruby on Rails 框架　呵呵　笑谈　写出的代码　比传统ａｓｐ还要烂

见鬼去吧　一切鬼东东　一起出来　骗人　

Shit!!!

线程通信

Tue, 27 Dec 2005 07:23:31 GMT

星期二　天气：晴

今天收到了　老网友　莹莹　邮来的信　高兴极了　里面还有一张它照片

今天晚上　我们小组　要去　工作聚餐　想不去　但很为难

明天晚上　单位全部聚餐　还得去　烦啊

经典论坛上　有人发贴　问　线程之间　通信的问题

写个例子

public class Test  {
 
 public static void main(String[] args) throws Exception{
  
  AddMethod a = new AddMethod(30);

                                Thread app1 = new Thread(a);
                                app1.setDaemon(true);
                                app1.start();

                                /*打开注释也可以的　紧为例子
                                      while(true){
                                          if(a.testMax()) break;
                                          Thread.sleep(3000);
                                 }*/
                                a.testMax();  

  System.out.println (Thread.currentThread().getName()+" end.");  
  
 } 
 
}

class AddMethod implements Runnable{
 
 private float fNum = 0.0f;
 private float fMax = 1000;
 private float fStep = 10;
 
 public AddMethod(float fStep){
  this.fStep = fStep;
 }
 
 public void run(){
  System.out.println (Thread.currentThread().getName()+" starting...");
  try{
   while(true){
    this.addNum();
    Thread.sleep(1000);
   }
  }catch(Exception ex){
   System.out.println (ex.getMessage());
  }
 }
 
 public synchronized void addNum(){
  this.fNum += this.fStep;
  if(this.fNum > this.fMax){   
   this.notifyAll();
  }  
 }
 
 public synchronized boolean testMax(){
  if(this.fNum < this.fMax){
   try{
    System.out.println (Thread.currentThread().getName() + " waitting...");
    this.wait();
    System.out.println ("fNum > fMax and is " + fNum);
    return true;
   }catch(java.lang.InterruptedException ex){
    System.out.println (ex.getMessage());
   }
  }
  return true;
 }
 
}

class TestThread extends Thread{
 
 private AddMethod o = null;
 
 public TestThread(AddMethod o){
  this.o = o;
  //this.setDaemon(false);
 }
 public void run(){
  this.o.testMax();
 }
}

不及格的程序员-八神: Java

Java输出图像水印文字

Java JNI 本地调用 交换鼠标左右键

死Hibernate

线程通信

Java JNI 本地调用交换鼠标左右键