Question

java servlet 如何获取form中的参数

Answer 1

最有可能的问题就是<form
action="./uploadMusic"
id="fileUploadForm"
name="fileUploadForm"
method="post"
enctype="multipart/form-data"
>里面的action="./uploadMusic"错误。你换个别的，比如../uploadMusic,或../../uploadMusic试试

Answer 2

你这样获取是正确，如果没获到，你看是不是提交给这个servlet了，
<form
action="uploadMusic"
id="fileUploadForm"
name="fileUploadForm"
method="post"
enctype="multipart/form-data"
>
或
<form
action="uploadmusic"
id="fileUploadForm"
name="fileUploadForm"
method="post"
enctype="multipart/form-data"
>
你试一下