从servlet读取发布数据

Question

I'm trying to read post data from a servelet doPost method the following way.

1. using httpservletrequest.getInputStream();

2. Creating an instance of bytearrayoutputstream .

3. writing the post data to bytearrayoutputstream from httpservletrequest.getInputStream() ;

4. Finally, output I'm getting from bytearrayoutputstream.toByteArray() .

The problem with that is, when I enter 150/10 in the textfield, toByteArray gives me 150%2F10 . toByteArray seems to be encoding the special characters in the output for the / character.

What will be the elegant way to read post data from servlet doPost() method?

Answer 1

before you pass data to the servlet, try to encode it in client side. or else when you retrieve it, in the servlet, do a Url encode there.

try this way:

String abc = URLEncoder.encode("convert my string 150/10", "UTF-8");
byte[] barr = abc.getBytes(Charset.forName("UTF-8"));

use above with the

request.getParameter();

then you don't have to play with all these fancy codes. I guess when you convert into a byte array, you will have to specify the encoding mechanism to avoid char set ambiguity.

I did not try the above code, but would like you to have a try!