软件课程设计（11）

###第十一天###

##今天主要是完成上传菜品功能##

以下是JAVA包里的

package com.util;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import java.util.Map;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class upload extends ActionSupport
{
private static final int BUFFER_SIZE = 16 * 1024;
private File fujian;
private String fujianFileName;
private String fujianContentType;


public String upload()
{
String newFujianName=new Date().getTime()+fujianFileName.substring(fujianFileName.indexOf("."));
String dstPath = ServletActionContext.getServletContext().getRealPath("upload")+ "\\" + newFujianName;
File dstFile = new File(dstPath);
copy(this.getFujian(),dstFile);
Map request=(Map)ServletActionContext.getContext().get("request");
request.put("newFujianName", newFujianName);
request.put("oldFujianName", fujianFileName);
request.put("fujianPath", "/upload"+ "/" + newFujianName);
return ActionSupport.SUCCESS;
}


private static void copy(File src, File dst)
{
InputStream in = null;
OutputStream out = null;
try
{
in = new BufferedInputStream(new FileInputStream(src), BUFFER_SIZE);
out = new BufferedOutputStream(new FileOutputStream(dst),BUFFER_SIZE);
byte[] buffer = new byte[BUFFER_SIZE];
int len = 0;
while ((len = in.read(buffer)) > 0)
{
out.write(buffer, 0, len);
}
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
if (null != in)
{
try
{
in.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
if (null != out)
{
try
{
out.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
}

public File getFujian()
{
return fujian;
}

public void setFujian(File fujian)
{
this.fujian = fujian;
}

public String getFujianContentType()
{
return fujianContentType;
}

public void setFujianContentType(String fujianContentType)
{
this.fujianContentType = fujianContentType;
}

public String getFujianFileName()
{
return fujianFileName;
}

public void setFujianFileName(String fujianFileName)
{
this.fujianFileName = fujianFileName;
}

}

还有jsp里的

 ##明日计划修改图标以及菜品，修改数据库结构，目前增删菜品在数据库内未进行操作不知道为什么##

#修改upload.JSP   明天展示不展示啊顺便问一句。。