<action name="fileUp" class="FileUpload.FileUpload">
<result>/message.jsp</result>
</action>
单文件上传
1.Action类
1 package FileUpload;
2
3 import java.io.File;
4 import java.io.FileInputStream;
5 import java.io.FileNotFoundException;
6 import java.io.FileOutputStream;
7
8 import javax.servlet.ServletContext;
9
10 import org.apache.struts2.ServletActionContext;
11
12 import com.opensymphony.xwork2.ActionSupport;
13
14 public class FileUpload extends ActionSupport{
15
16 private File fileName;
17 private String fileNameContentType;
18 private String fileNameFileName;
19
20 public String execute() throws Exception{
21
22 ServletContext servletContext = ServletActionContext.getServletContext();
23 String dir = servletContext.getRealPath("/files/"+fileNameFileName);
24 System.out.println(dir);
25 FileOutputStream outputStream = new FileOutputStream(dir);
26 FileInputStream inputStream = new FileInputStream(fileName);
27 byte[] buffer = new byte[1024];
28 int len = 0;
29 // 从此输入流中将最多 b.length 个字节的数据读入一个 byte 数组中.读入缓冲区的字节总数，如果因为已经到达文件末尾而没有更多的数据，则返回 -1。
30 while((len = inputStream.read(buffer))!=-1){
31 // 将指定 byte 数组中从偏移量 off 开始的 len 个字节写入此文件输出流。
32 outputStream.write(buffer, 0, len);
33 }
34 inputStream.close();
35 outputStream.close();
36 return SUCCESS;
37 }
38
39 public File getFileName() {
40 return fileName;
41 }
42
43 public void setFileName(File fileName) {
44 this.fileName = fileName;
45 }
46
47 public String getFileNameContentType() {
48 return fileNameContentType;
49 }
50
51 public void setFileNameContentType(String fileNameContentType) {
52 this.fileNameContentType = fileNameContentType;
53 }
54
55 public String getFileNameFileName() {
56 return fileNameFileName;
57 }
58
59 public void setFileNameFileName(String fileNameFileName) {
60 this.fileNameFileName = fileNameFileName;
61 }
62
63
64
65 }
2.
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Insert title here</title> 6 </head> 7 <body> 8 9 <form action="/Struts2FileUpload/fileUp.action" method="post" enctype ="multipart/form-data"> 10 11 <input type="file" name="fileName" > 12 <input type="submit" value="提交"> 13 </form> 14 15 </body> 16 </html>
3.
<action name="fileUp" class="FileUpload.FileUpload">
<result>/message.jsp</result>
</action>
时间： 2024-10-16 13:57:44