1. 在第一篇架构基础上进行
2. 修改maven依赖
1 <dependencies> 2 <dependency> 3 <groupId>org.directwebremoting</groupId> 4 <artifactId>dwr</artifactId> 5 <version>3.0.1-RELEASE</version> 6 </dependency> 7 <dependency> 8 <groupId>commons-logging</groupId> 9 <artifactId>commons-logging</artifactId> 10 <version>1.2</version> 11 </dependency> 12 <dependency> 13 <groupId>commons-fileupload</groupId> 14 <artifactId>commons-fileupload</artifactId> 15 <version>1.3.1</version> 16 </dependency> 17 <dependency> 18 <groupId>commons-io</groupId> 19 <artifactId>commons-io</artifactId> 20 <version>2.4</version> 21 </dependency> 22 </dependencies>
3. 编写jsp页面
1 <html>
2 <head>
3 <base href="<%=basePath%>">
4
5 <title>dwr</title>
6 <script type=‘text/javascript‘ src=‘dwr/engine.js‘></script>
7 <script type=‘text/javascript‘ src=‘dwr/util.js‘></script>
8 <script type=‘text/javascript‘ src=‘dwr/interface/CoreServlet.js‘></script>
9 </head>
10 <body>
11
12 <input type="file" name="file" />
13 <button onclick="upload();">上传</button>
14
15 </body>
16 <script type="text/javascript">
17 function upload() {
18 var file = dwr.util.getValue("file");
19 CoreServlet.uploadFile(file, file.value, function(data) {
20 if (data == true) {
21 alert("上传成功！");
22 }
23 });
24 }
25 </script>
26 </html>
4. 编写后台代码：
1 public class CoreServlet {
2
3 public boolean uploadFile(InputStream is, String path) throws Exception {
4 String fileName = path.substring(path.lastIndexOf("\\") + 1, path.length());
5 FileOutputStream fos = new FileOutputStream(new File("E://" + fileName));
6 byte[] b = new byte[1024];
7 while ((is.read(b)) != -1) {
8 fos.write(b);
9 }
10 is.close();
11 fos.close();
12 return true;
13 }
14
15 }
时间： 2025-01-06 17:49:15