用Struts向MySQL中储存图片

这个例子是通过用Struts的FormFile来写入到MySQL中。用户通过选一个图片，然后按submit就可以存入数据库中。

1.首先需要建立一个表:

create table test
( name varchar(20),
pic blob );
在MySQL的test库中

<%@ page language="java"%>
<%@ taglib uri=
"http://jakarta.apache.org/struts/tags-bean"
prefix="bean"%>
<%@ taglib uri=
"http://jakarta.apache.org/struts/tags-html"
prefix="html"%>

<html>
<head>
<title>JSP for multiForm form</title>
</head>
<body>
<html:form action="/multi"
enctype="multipart/form-data">
一定要用enctype=“multipart/form-data“
不然就提交之后就会有抛出异常
   file : <html:file property="file"/>
   <html:errors property="file"/></br>
   name : <html:text property="name"/>
   <html:errors property="name"/></br>
   <html:submit/><html:cancel/>
</html:form>
</body>
</html>

2. 相对应的ActionForm:

//Created by MyEclipse Struts
// XSL source (default):
platform:/plugin/com.genuitec.eclipse.
cross.easystruts.eclipse_3.8.1
/xslt/JavaClass.xsl

package saoo.struts.form;

import org.apache.struts.action.ActionForm;
import org.apache.struts.upload.FormFile;

/**
* MyEclipse Struts
* Creation date: 08-24-2004
*
* XDoclet definition:
* @struts:form name="multiForm"
*/
public class MultiForm extends ActionForm
{

// ----------------
Instance Variables

/** file property */
private FormFile file;

/** name property */
private String name;

// -----------------
Methods

    /**
     * Returns the file.
     * @return FormFile
     */
    public FormFile getFile()
{
        return file;
    }

    /**
     * Set the file.
     * @param file The file to set
     */
    public void setFile(FormFile file)
{
        this.file = file;
    }

    /**
     * Returns the name.
     * @return String
     */
    public String getName()
{
        return name;
    }

    /**
     * Set the name.
     * @param name The name to set
     */
    public void setName(String name)
{
        this.name = name;
    }
}