java.lang.StackOverflowError at sun.nio.cs.UTF_8$Encoder.encodeLoop(UTF_8.java:447)

   INTERNAL_SERVER_ERROR

Caused by:

java.lang.StackOverflowError
	at sun.nio.cs.UTF_8$Encoder.encodeLoop(UTF_8.java:447)
	at java.nio.charset.CharsetEncoder.encode(CharsetEncoder.java:544)
	at sun.nio.cs.StreamEncoder.implWrite(StreamEncoder.java:252)
	at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:106)
	at java.io.OutputStreamWriter.write(OutputStreamWriter.java:190)
	at java.io.BufferedWriter.flushBuffer(BufferedWriter.java:111)
	at java.io.PrintStream.write(PrintStream.java:476)
	at java.io.PrintStream.print(PrintStream.java:619)
	at java.io.PrintStream.println(PrintStream.java:756)
 
  
 
  
 
  
原因是你方法自身循环调用导致的

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