Java Jersey：以字节数组形式接收表单参数
是否可以使用 Jersey 以字节数组形式接收表单参数？
我尝试了以下操作：
@Path("/someMethod")
@POST
@Produces(MediaType.TEXT_HTML)
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public String someMethod(@FormParam("someParam") byte[] someParam)
{
return "";
}
但出现此错误：
SEVERE: The following errors and warnings have been detected with resource and/or provider classes:
SEVERE: Missing dependency for method public java.lang.String SomeClass.someMethod(byte[]) at parameter at index 0
SEVERE: Missing dependency for method public java.lang.String SomeClass.someMethod(byte[]) at parameter at index 0
SEVERE: Method, public java.lang.String SomeClass.someMethod(byte[]), annotated with POST of resource, class SomeClass, is not recognized as valid resource method.
如果我将 byte[] 更改为 String，则一切正常。
我需要以 byte[] 而不是 String 的形式接收数据的原因是因为数据可能使用不同的字符集进行编码。这取决于提交数据的 HTML 文档，我需要在服务器端正确解码数据（编码字符集在单独的参数中提交）。
所以，如果我可以接收 byte[] 形式的数据，那就可以解决我的问题。也欢迎任何其他解决方案。
谢谢你！
Is it possible to receive form parameter as byte array with Jersey?
I tried the following:
@Path("/someMethod")
@POST
@Produces(MediaType.TEXT_HTML)
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public String someMethod(@FormParam("someParam") byte[] someParam)
{
return "";
}
But got this error:
SEVERE: The following errors and warnings have been detected with resource and/or provider classes:
SEVERE: Missing dependency for method public java.lang.String SomeClass.someMethod(byte[]) at parameter at index 0
SEVERE: Missing dependency for method public java.lang.String SomeClass.someMethod(byte[]) at parameter at index 0
SEVERE: Method, public java.lang.String SomeClass.someMethod(byte[]), annotated with POST of resource, class SomeClass, is not recognized as valid resource method.
If I change byte[] to String, everything works correctly.
The reason I need to receive data as byte[] and not as String is because data may be encoded using different charsets. It depends on the HTML document that submits data and I need to decode data correctly on server side (encoding charset is submitted in a separate parameter).
So, if I can receive data as byte[], it will solve my problem. Any other solutions are welcome as well.
Thank you!
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如果 Jersey 符合 JAX-RS 规范，则该参数可以是
因为它实际上是在 Jersey API。
如果您想最好地使用 @FormParam，您可以定义一个 ByteArray 类来处理由 String 转换引起的错误并将其用作参数类型。
If Jersey conforms to JAX-RS spec then the parameter may be
as it is actually defined in the Jersey API.
If you want to use @FormParam the best you might be able to do define a
ByteArray-class that handles the errors caused by the String conversion and use it as the parameter type.谢谢您的回答！我终于找到了解决方案...
现在我看到了一个解决方案，我明白我没有很好地描述我的问题，它会引导您走向不同的方向...
问题是我从使用不同编码的许多不同页面向服务器提交表单数据。
当页面使用 utf-8 编码时，一切正常，但当页面使用不同编码时，特殊字符会丢失。
解决方案是将
accept-charset="utf-8"添加到谢谢你！
Thank you for your answers! I finally found a solution...
Now that I see a solution, I understand that I didn't describe my problem well enough and it lead you to a different direction...
The problem was that I submit form data to the server from many different pages which use different encodings.
When page uses utf-8 encoding, everything worked correctly but when page uses different encoding, special characters got lost.
The solution was to add
accept-charset="utf-8"to the <FORM> html element, which caused browser to always encode form data to utf-8 encoding, which solved encoding problem on the server side.Thank you!