用struts2对上传图片功能的实现

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Struts

struts2 文件上传

1、图片上传的jsp页面代码：

<body>
<div align="center">
<form name="uploadImageForm" action="upload_images.action" method="post" 
nctype="multipart/form-data">
<label for="upload">上传头像:</label>
<input type="file" name="upload">
<br>
<br>
<input type="submit" value="上传">
</form>
</div>
</body>

2、处理图片上传的action代码:

 
public class FileUpLoadAction extends ActionSupport{
//上传文件标题
private String fileTitle;

//上传文件域
private File upload;

//上传文件类型
private String uploadFileType;

//上传文件名
private String uploadFileName;

//直接在sturts.xml文件中配置值的属性
private String savePath_images;

//接受struts.xml文件配置值的方法
@SuppressWarnings("deprecation")
public String getSavePath_images() {
return ServletActionContext.getRequest().getRealPath(savePath_images);
}

public void setSavePath_images(String savePath_images) {
this.savePath_images = savePath_images;
}

public String getFileTitle() {
return fileTitle;
}

public void setFileTitle(String fileTitle) {
this.fileTitle = fileTitle;
}

public File getUpload() {
return upload;
}

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

public String getUploadFileType() {
return uploadFileType;
}

public void setUploadFileType(String uploadFileType) {
this.uploadFileType = uploadFileType;
}

public String getUploadFileName() {
return uploadFileName;
}

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

//上传头像
public String upload_images(){
try {
FileOutputStream fos = new FileOutputStream(getSavePath_images() + "\\" + 
etUploadFileName());
FileInputStream fis = new FileInputStream(getUpload());
byte[] buffer = new byte[1024];
int len = 0;
try {
while((len = fis.read(buffer)) > 0){
fos.write(buffer, 0, len);
}
} catch (IOException e) {
e.printStackTrace();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
return SUCCESS;
}
}

3、struts.xml文件中配置action的代码:

<!-- 配置处理文件上传的Action -->
<action name="upload_*" class="com.project.action.common.FileUpLoadAction" 
ethod="upload_{1}">
<!-- 动态设置Action的属性值 -->
<param name="savePath_images">/front/images</param>
<!-- 配置Struts2默认的视图页面 -->
<result>/front/registSuccess.jsp</result>
</action>

4、最后是上传成功的页面registSuccess.jsp部分代码：

<body>
<div align="center">
恭喜！注册成功
<br>
<a href="front/login.jsp">登录@一起笑笑</a>
<br>
<img src="<s:property value="'front/images/' + uploadFileName"/>">
</div>
</body>

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