struts2框架中文件上传:

定义表单：

<input type="file" name="upload" method="post" enctype="multipart/form-data"/>

定义接收表单的action属性

/* struts2框架中文件上传:* 文件的条件:* 表单提交的方式需要是POST* 表单中上传项必须有一个name属性.表单的enctype属性值需要是multipart/form-data*/// 文件上传需要的三个属性:public class FileAction{//upload必须与表单name相同    private File upload;    private String uploadFileName;    private String uploadContentType;    public void setUpload(File upload) {        this.upload = upload;    }    public void setUploadFileName(String uploadFileName) {        this.uploadFileName = uploadFileName;    }    public void setUploadContentType(String uploadContentType) {        this.uploadContentType = uploadContentType;    }}

定义action接收的方法，主意在struts文件定义此action，还有web.xml中定义拦截的路径

//import org.apache.commons.io.FileUtils;    public String save() throws IOException {        // 将提交的数据添加到数据库中.product为接收的类        product.setPdate(new Date());        // product.setImage(image);        if(upload != null){            // 将商品图片上传到服务器上.            // 获得上传图片的服务器端路径.            String path = ServletActionContext.getServletContext().getRealPath(                    "/products");            // 创建文件类型对象:            File diskFile = new File(path + "//" + uploadFileName);            // 文件上传:            FileUtils.copyFile(upload, diskFile);                product.setImage("products/" + uploadFileName);        }        productService.save(product);        return "saveSuccess";    }