Struts2的文件上传不工作

Question

UploadvideoAction.java：

private File id; 
private String title; 
private String url; 
private String name=""; 
private String message=""; 
private String idContentType; 
private String idFileName; 

public String getIdContentType() { 
    return idContentType; 
} 

public void setIdContentType(String idContentType) { 
    this.idContentType = idContentType; 
} 
public String getIdFileName() { 
    return idFileName; 
} 
public void setIdFileName(String idFileName) { 
    this.idFileName = idFileName; 
} 
public void setServletRequest(HttpServletRequest servletRequest) { 
    this.servletRequest = servletRequest; 

} 
public String getMessage() { 
    return message; 
} 
public void setMessage(String message1) { 
    this.message = message; 
} 
public String getName() { 
    return name; 
} 
public void setName(String name) { 
    this.name = name; 
} 
public File getId() { 
    return id; 
} 
public void setId(File id) { 
    this.id = id; 
} 
public String getTitle() { 
    return title; 
} 
public void setTitle(String title) { 
    this.title = title; 
} 
public String getUrl() { 
    return url; 
} 
public void setUrl(String url) { 
    this.url = url; 
} 

struts.xml中：

<action name="uploadvideo" class="com.myapp.ysrcptv.UploadvideoAction"> 
    <interceptor-ref name="fileUpload"> 
     <param name="allowedTypes">video/mp4,video/ogg,video/webm</param> 
    </interceptor-ref> 
    <interceptor-ref name="defaultStack"></interceptor-ref> 

    <result>${url}</result> 
    <result name="login">adminlogin.jsp</result> 
    <result name="input">${url}</result> 
</action> 

uploadvideos.jsp：

<s:form cssClass="form" action="uploadvideo" method="post" validate="false" enctype="multipart/form-data"> 
<s:file cssClass="input" name="id" value="" placeholder="Video"></s:file> 
<s:textfield cssClass="input" name="title" value="" placeholder="Video Title"></s:textfield> 
<input type="hidden" name="name" value="gellery pic"/> 
<input type="hidden" name="url" value="uploadvideos.jsp"/> 
<s:submit cssClass="btn" value="Upload"></s:submit> 
<div class="formdiv"><s:property value="message"/></div> 
</s:form> 

UploadvideoAction-validation.xml中：

<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN" 
     "http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd"> 
<validators> 

    <field name="id"> 
     <field-validator type="requiredstring">    
      <message>File is required.</message> 
     </field-validator> 
    </field> 

---

问题：只有服务器端文件id验证不能正常工作。即使我选择了一个文件，它也显示验证消息File is required。剩余的验证工作正常。我在这里放置一些东西。在工作之前。重新启动我的服务器后，此验证无效。

Answer 1

您使用了错误的验证程序。 "requiredstring"验证器用于验证文本字段。您可以使用"required"验证程序验证该字段不是null。

<field name="id"> 
    <field-validator type="required">    
     <message>File is required.</message> 
    </field-validator> 
</field>