这个JSP上传SERVLET,我想把它的上传目录改到其他地方,如下,最后几行,应该是就改最后几行吧 String tmpPath = "d:\\my web\tmpdir";
String savePath = "d:\\my web\updir";我把它改到这里,可是会报错,说“\”是不可用的符号。请高手指教import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.apache.commons.fileupload.DefaultFileItemFactory;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.util.Streams;/**
* Servlet implementation class for Servlet: UploadServlet
*
*/
public class UploadServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
/**
*
*/
private static final long serialVersionUID = 1L;
File tmpDir = null;//初始化上传文件的临时存放目录
File saveDir = null;//初始化上传文件后的保存目录
public UploadServlet() {
super();
} protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request,response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try{
if(ServletFileUpload.isMultipartContent(request)){
DiskFileItemFactory dff = new DiskFileItemFactory();//创建该对象
dff.setRepository(tmpDir);//指定上传文件的临时目录
dff.setSizeThreshold(1024000);//指定在内存中缓存数据大小,单位为byte
ServletFileUpload sfu = new ServletFileUpload(dff);//创建该对象
sfu.setFileSizeMax(5000000);//指定单个上传文件的最大尺寸
sfu.setSizeMax(10000000);//指定一次上传多个文件的总尺寸
FileItemIterator fii = sfu.getItemIterator(request);//解析request 请求,并返回FileItemIterator集合
while(fii.hasNext()){
FileItemStream fis = fii.next();//从集合中获得一个文件流
if(!fis.isFormField() && fis.getName().length()>0){//过滤掉表单中非文件域
String fileName = fis.getName().substring(fis.getName().lastIndexOf("\\"));//获得上传文件的文件名
BufferedInputStream in = new BufferedInputStream(fis.openStream());//获得文件输入流
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(new File(saveDir+fileName)));//获得文件输出流
Streams.copy(in, out, true);//开始把文件写到你指定的上传文件夹
}
}
response.getWriter().println("File upload successfully!!!");//终于成功了,还不到你的上传文件中看看,你要的东西都到齐了吗
}
}catch(Exception e){
e.printStackTrace();
}
} public void init() throws ServletException {
/* 对上传文件夹和临时文件夹进行初始化
*
*/
super.init();
String tmpPath = "d:\\my web\tmpdir";
String savePath = "d:\\my web\updir";
tmpDir = new File(tmpPath);
saveDir = new File(savePath);
if(!tmpDir.isDirectory())
tmpDir.mkdir();
if(!saveDir.isDirectory())
saveDir.mkdir();
}
}
String savePath = "d:\\my web\updir";我把它改到这里,可是会报错,说“\”是不可用的符号。请高手指教import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.apache.commons.fileupload.DefaultFileItemFactory;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.util.Streams;/**
* Servlet implementation class for Servlet: UploadServlet
*
*/
public class UploadServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
/**
*
*/
private static final long serialVersionUID = 1L;
File tmpDir = null;//初始化上传文件的临时存放目录
File saveDir = null;//初始化上传文件后的保存目录
public UploadServlet() {
super();
} protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request,response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try{
if(ServletFileUpload.isMultipartContent(request)){
DiskFileItemFactory dff = new DiskFileItemFactory();//创建该对象
dff.setRepository(tmpDir);//指定上传文件的临时目录
dff.setSizeThreshold(1024000);//指定在内存中缓存数据大小,单位为byte
ServletFileUpload sfu = new ServletFileUpload(dff);//创建该对象
sfu.setFileSizeMax(5000000);//指定单个上传文件的最大尺寸
sfu.setSizeMax(10000000);//指定一次上传多个文件的总尺寸
FileItemIterator fii = sfu.getItemIterator(request);//解析request 请求,并返回FileItemIterator集合
while(fii.hasNext()){
FileItemStream fis = fii.next();//从集合中获得一个文件流
if(!fis.isFormField() && fis.getName().length()>0){//过滤掉表单中非文件域
String fileName = fis.getName().substring(fis.getName().lastIndexOf("\\"));//获得上传文件的文件名
BufferedInputStream in = new BufferedInputStream(fis.openStream());//获得文件输入流
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(new File(saveDir+fileName)));//获得文件输出流
Streams.copy(in, out, true);//开始把文件写到你指定的上传文件夹
}
}
response.getWriter().println("File upload successfully!!!");//终于成功了,还不到你的上传文件中看看,你要的东西都到齐了吗
}
}catch(Exception e){
e.printStackTrace();
}
} public void init() throws ServletException {
/* 对上传文件夹和临时文件夹进行初始化
*
*/
super.init();
String tmpPath = "d:\\my web\tmpdir";
String savePath = "d:\\my web\updir";
tmpDir = new File(tmpPath);
saveDir = new File(savePath);
if(!tmpDir.isDirectory())
tmpDir.mkdir();
if(!saveDir.isDirectory())
saveDir.mkdir();
}
}
String savePath = "d:\\my web\\updir"; 都要用 "//" 啊 要么就用 "/"
或者d:/my web/tmpdir
如果是"/" 就一个就行了
例如:
D:\\images\\upload.jpg
跟
D:/images/upload.jpg
是一样的
严重: Servlet /WebRoot threw load() exception
javax.servlet.UnavailableException: Initializing application data source org.apache.struts.action.DATA_SOURCE
at org.apache.struts.action.ActionServlet.initModuleDataSources(ActionServlet.java:1091)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:472)
at javax.servlet.GenericServlet.init(GenericServlet.java:212)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1161)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:981)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4364)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:924)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:887)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
这是什么情况,请高手指教
或者jdbc驱动jar包的路径是不是对的