Question

<body>
    <form action="<%= blobstoreService.createUploadUrl("/upload") %>" 
          method="post" 
         enctype="multipart/form-data"
    >
        <input type="file" name="myFile">
        <input type="submit" value="Submit">
    </form>
</body>

上面的代码在编译时抛出java.lang.NoSuchMethodError。我无法理解上面代码中的blobstoreService是什么？

Answer 1

您缺少标题

＆lt;％@ page import =“com.google.appengine.api.blobstore.BlobstoreServiceFactory”％＆gt; ＆lt;％@ page import =“com.google.appengine.api.blobstore.BlobstoreService”％＆gt;

＆LT;％ BlobstoreService blobstoreService = BlobstoreServiceFactory.getBlobstoreService（）; ％GT;

上传测试 “method =”post“enctype =”multipart / form-data“＆gt;

blobstore上传代码无法正常工作

1 个答案: