主题：JSP一个文件上传的问题
zfk120
[专家分：0] 发布于 2005-08-01 22:54:00
我做一个公司内部的管理系统，要同时上传3个文件，在文件上传的同时，要把文件的
服务器路径和文件名存到数据库，以供另一个页面去调用，我用的是jspsmartload做的，一个javabean负责传递参数，一个专门的javabean负责连接数据库和数据库操作，
但我不知道怎么把服务器路径和文件名从JSP传给负责数据库操作的javabean，请高手帮帮忙，小弟是新手，大家见笑了
回复列表 （共11个回复）
沙发
chenping0108 [专家分：30] 发布于 2005-08-02 10:44:00
<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="java.sql.*"%>
<%@ page import="com.jspsmart.upload.*" %>
<%@ page import="DBstep.iDBManager2000.*"%>
<%
//实例化上载bean
com.jspsmart.upload.SmartUpload mySmartUpload=new com.jspsmart.upload.SmartUpload();
//初始化
mySmartUpload.initialize(pageContext);
//设置上载的最大值
mySmartUpload.setMaxFileSize(500 * 1024*1024);
//上载文件
mySmartUpload.upload();
//循环取得所有上载的文件
for (int i=0;i<mySmartUpload.getFiles().getCount();i++){
//取得上载的文件
com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(i);
if (!myFile.isMissing())
{
//取得上载的文件的文件名
String myFileName=myFile.getFileName();
//取得不带后缀的文件名
String suffix=myFileName.substring(0,myFileName.lastIndexOf('.'));
//取得后缀名
String ext= mySmartUpload.getFiles().getFile(0).getFileExt();
//取得文件的大小
int fileSize=myFile.getSize();
//保存路径
String aa=getServletContext().getRealPath("/")+"jsp\";
String trace=aa+myFileName;
//取得别的参数
String explain=(String)mySmartUpload.getRequest().getParameter("text");
String send=(String)mySmartUpload.getRequest().getParameter("send");
//将文件保存在服务器端
myFile.saveAs(trace,mySmartUpload.SAVE_PHYSICAL);
//下面的是将上载的文件保存到数据库中
//将文件读到流中
java.io.File file = new java.io.File(trace);
java.io.FileInputStream fis = new java.io.FileInputStream(file);
out.println(file.length());
//打开数据库
ResultSet result=null;
String mSql=null;
PreparedStatement prestmt=null;
DBstep.iDBManager2000 DbaObj=new DBstep.iDBManager2000();
DbaObj.OpenConnection();
//将文件写到数据库中
mSql="insert into marklist (markname,password,marksize,markdate,MarkBody) values (?,?,?,?,?)";
prestmt =DbaObj.Conn.prepareStatement(mSql);
prestmt.setString(1, "aaa1");
prestmt.setString(2, "0000");
prestmt.setInt(3, fileSize);
prestmt.setString(4, DbaObj.GetDateTime());
prestmt.setBinaryStream(5,fis,(int)file.length());
DbaObj.Conn.setAutoCommit(true) ;
prestmt.executeUpdate();
DbaObj.Conn.commit();
out.println(("上载成功！！！").toString());
}
else
{ out.println(("上载失败！！！").toString()); }
}//与前面的if对应
%>
自己看吧
存到数据库的
板凳
zfk120 [专家分：0] 发布于 2005-08-02 22:34:00
谢谢一楼的朋友，我想问一下
//设置上载的最大值
mySmartUpload.setMaxFileSize(500 * 1024*1024);
//取得别的参数
String explain=(String)mySmartUpload.getRequest().getParameter("text");
String send=(String)mySmartUpload.getRequest().getParameter("send");
//将文件保存在服务器端
myFile.saveAs(trace,mySmartUpload.SAVE_PHYSICAL);
这几句是必须的吗？
还有这句
//保存路径
String aa=getServletContext().getRealPath("/")+"jsp\";
String trace=aa+myFileName;
是什么意思啊？
3 楼
zfk120 [专家分：0] 发布于 2005-08-02 22:35:00
JSP页面可以与JAVABEAN传递参数吗？
4 楼
zfk120 [专家分：0] 发布于 2005-08-06 15:49:00
[em7]怎么没人回复呢
5 楼
zjjsgxx [专家分：470] 发布于 2005-08-07 08:26:00
jsp页面可以使用Bean，Bean的本质是类，在java中是如何使用类的，在jsp中同样可以使用，没什么区别。
6 楼
Jimmy817 [专家分：20] 发布于 2005-08-09 17:19:00
jsp 页面可以通过 form 表单来传参给 javabean 啊
7 楼
zfk120 [专家分：0] 发布于 2005-08-12 00:00:00
谢谢大家了[em3]
8 楼
zfk120 [专家分：0] 发布于 2005-08-12 00:20:00
谢谢大家的帮忙，现在这个系统基本做好了，还有个缺点就是新传到服务器上的路径和文件名传不到数据库，但别的字符类型的都可以，并提示以下的错误：
Apache Tomcat/4.0.6 - HTTP Status 500 - Internal Server Errortype Exception reportmessage Internal Server Errordescription The server encountered an internal error (Internal Server Error) that prevented it from fulfilling this request.exception javax.servlet.ServletException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is null
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:471)
at org.apache.jsp.Upload$jsp._jspService(Upload$jsp.java:272)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
9 楼
zfk120 [专家分：0] 发布于 2005-08-12 00:21:00
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
at java.lang.Thread.run(Thread.java:534)
root cause org.apache.commons.fileupload.FileUploadBase$InvalidContentTypeException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is null
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:299)
at org.apache.jsp.Upload$jsp._jspService(Upload$jsp.java:166)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
10 楼
zfk120 [专家分：0] 发布于 2005-08-12 00:21:00
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:299)
at org.apache.jsp.Upload$jsp._jspService(Upload$jsp.java:166)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
at java.lang.Thread.run(Thread.java:534)
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