Spring Interceptor gets JSON-formatted data from request

Content Title

1. Create a value class

1 /**2 * Myrequestwrapper.java3  * 4 * @screen5  * @authorHavery6  */7  PackageCom.newpp.core.interceptor;8 9 ImportJava.io.BufferedReader;Ten ImportJava.io.ByteArrayInputStream; One Importjava.io.IOException; A ImportJava.io.InputStream; - ImportJava.io.InputStreamReader; -  the ImportJavax.servlet.ServletInputStream; - Importjavax.servlet.http.HttpServletRequest; - ImportJavax.servlet.http.HttpServletRequestWrapper; -  + /** - * Myrequestwrapper. +  *  A  * @authorHavery at  */ -  Public classMyrequestwrapperextendsHttpservletrequestwrapper { -     Private FinalString body; -  -      PublicMyrequestwrapper (HttpServletRequest request)throwsIOException { -         Super(request); inStringBuilder StringBuilder =NewStringBuilder (); -BufferedReader BufferedReader =NULL; to         Try { +InputStream InputStream =Request.getinputstream (); -             if(InputStream! =NULL) { theBufferedReader =NewBufferedReader (NewInputStreamReader (InputStream)); *                 Char[] Charbuffer =New Char[128]; $                 intBytesread =-1;Panax Notoginseng                  while((Bytesread = Bufferedreader.read (charbuffer)) > 0) { -Stringbuilder.append (charbuffer, 0, bytesread); the                 } +}Else { AStringbuilder.append (""); the             } +}Catch(IOException ex) { -             Throwex; $}finally { $             if(BufferedReader! =NULL) { -                 Try { - bufferedreader.close (); the}Catch(IOException ex) { -                     Throwex;Wuyi                 } the             } -         } WuBODY =stringbuilder.tostring (); -     } About  $ @Override -      PublicServletInputStream getInputStream ()throwsIOException { -         FinalBytearrayinputstream Bytearrayinputstream =NewBytearrayinputstream (Body.getbytes ()); -ServletInputStream ServletInputStream =NewServletInputStream () { A              Public intRead ()throwsIOException { +                 returnBytearrayinputstream.read (); the             } -         }; $         returnServletInputStream; the     } the  the @Override the      PublicBufferedReader Getreader ()throwsIOException { -         return NewBufferedReader (NewInputStreamReader ( This. getInputStream ())); in     } the  the      PublicString GetBody () { About         return  This. Body; the     } the}

2. Take the value

New Myrequestwrapper ((httpservletrequest) request);         = Myrequestwrapper.getbody ();

Spring Interceptor gets JSON-formatted data from request