java – 例1
最后更新于：2022-04-01 23:42:23
**以下代码仅作为参考示例，不建议直接拷贝到项目中使用**
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java 代码示例
```java
import java.util.UUID;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import com.sun.xml.internal.ws.wsdl.writer.document.Part;
public class UploadImgServiet extends HttpServlet {
public UploadImgServiet() {
super();
}
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String path = request.getRealPath("/image");
File file = new File(path);
if (!file.exists())
file.mkdirs();
String fileName = "";// 文件名称
/**上传文件处理内容**/
DiskFileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload sfu = new ServletFileUpload(factory);
sfu.setHeaderEncoding("UTF-8"); // 处理中文问题
sfu.setSizeMax(1024 * 1024); // 限制文件大小
try {
List fileItems = sfu.parseRequest(request); // 解码请求
for (FileItem fi : fileItems) {
fileName = UUID.randomUUID()+fi.getName().substring(fi.getName().lastIndexOf("."),fi.getName().length());
fi.write(new File(path, fileName));
}
} catch (Exception e) {
e.printStackTrace();
}
/**********************/
//获取图片url地址
string imgUrl = "http://localhost:8080/wang_editor_demo/image/" + fileName;
response.setContentType("text/text;charset=utf-8");
PrintWriter out = response.getWriter();
out.print(imgUrl); //返回url地址
out.flush();
out.close();
}
public void init() throws ServletException {
// Put your code here
}
}
```
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