我們寫項目的時候，上傳圖片與上傳文件都是非常重要的一個代碼，這關系到項目是否能計劃諾入信息的關鍵，那我們下面就來講一下strust2上傳文件使用到的代碼，還有代碼的原理吧。
private String uploadContentType;

private String uploadFileName;

private String savepath;

private File upload;

public String getUploadContentType() {
    return uploadContentType;
}

public void setUploadContentType(String uploadContentType) {
    this.uploadContentType = uploadContentType;
}

public String getUploadFileName() {
    return uploadFileName;
}

public void setUploadFileName(String uploadFileName) {
    this.uploadFileName = uploadFileName;
}

public String getSavepath() throws Exception {
    return ServletActionContext.getServletContext().getRealPath(savepath);
}

public void setSavepath(String savepath) {
    this.savepath = savepath;
}

public File getUpload() {
    return upload;
}

public void setUpload(File upload) {
    this.upload = upload;
}

public String execute() throws Exception {
    Calendar now = Calendar.getInstance();
    String path = getSavepath() + "/" + now.get(Calendar.YEAR) + "/"
            + (now.get(Calendar.MONTH) + 1);
    path = StringsCommom.returnPath(path);
    File file = new File(path);
    if (!file.exists())
        file.mkdirs();
    FileOutputStream fos = new FileOutputStream(path + "\\"
            + StringsCommom.returnFileNewsName(getUploadFileName()));
    FileInputStream fis = new FileInputStream(getUpload());
    byte[] buffer = new byte[1024];
    int len = 0;
    while ((len = fis.read(buffer)) > 0) {
        fos.write(buffer, 0, len);
    }
    fos.close();
    fis.close();
    return "success";
}
通過上面的代碼我們可以看到我們主要是將流的信息放到文件里面去。
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