package org.brain.tool;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.context.FacesContext;
import javax.servlet.http.HttpSession;
import org.brain.dbo.DBOperate;
import org.brain.pojos.Document;
import org.brain.pojos.User;
@ManagedBean(name="toolBean")
@RequestScoped
public class ToolBean {
public String contextPath;
public static User getUserSession()
{
HttpSession session = (HttpSession) FacesContext.getCurrentInstance()
.getExternalContext().getSession(true);
return (User) session.getAttribute("user");
}
public static String getRequestParameter(String name)
{
return (String)FacesContext.getCurrentInstance()
.getExternalContext()
.getRequestParameterMap().get(name);
}
public String getContextPath() {
return FacesContext.getCurrentInstance().getExternalContext().getRequestContextPath();
}
public void setContextPath(String contextPath) {
this.contextPath = contextPath;
}
public static boolean UpdateImage(String path)
{
System.out.println("path "+path);
String[]a = path.split("/");
String pathImage = a[a.length-1];
System.out.println("path 的值是："+path+" leng"+a.length);
File file = null;
FileOutputStream fos = null;
String outfile = FacesContext.getCurrentInstance().getExternalContext().getRequestContextPath()+"/"+pathImage;
byte[] Buffer = new byte[4096];
try {
FileInputStream in = new FileInputStream(new File(path));
file = new File(outfile);
if (!file.exists()) {
file.createNewFile(); // 如果文件不存在，则创建
}
fos = new FileOutputStream(file);
int size = 0;
in.read(Buffer);
fos.write(Buffer);
fos.close();
} catch (Exception e) {
System.out.println( e.getMessage());
}
System.out.println("文件输出路径"+outfile);
return false;
}
public void showImage()
{
FileOutputStream fos = null;
//InputStream is = null;
byte[] Buffer = null;
Document doc = DBOperate.getDocument(43);
//Buffer = doc.getImage();
try{
File file = new File("d://b.jpg");
if (!file.exists()) {
file.createNewFile(); // 如果文件不存在，则创建
}
fos = new FileOutputStream(file);
fos.write(Buffer);
fos.close();
} catch (Exception e) {
System.out.println( e.getMessage());
}
}
public static void main(String[] args) {
ToolBean tool = new ToolBean();
tool.showImage();
}
}