javax.servlet

Class ServletOutputStream

Inhaltsverzeichnis
  • All Implemented Interfaces:
    Closeable, Flushable, AutoCloseable

    public abstract class ServletOutputStream
extends OutputStream
    Provides an output stream for sending binary data to the client. A ServletOutputStream object is normally retrieved via the ServletResponse.getOutputStream() method.

    This is an abstract class that the servlet container implements. Subclasses of this class must implement the java.io.OutputStream.write(int) method.

    Author:
    Various
    See Also:
    ServletResponse

    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method and Description
      abstract boolean isReady()
      This method can be used to determine if data can be written without blocking.
      void print(boolean b)
      Writes a boolean value to the client, with no carriage return-line feed (CRLF) character at the end.
      void print(char c)
      Writes a character to the client, with no carriage return-line feed (CRLF) at the end.
      void print(double d)
      Writes a double value to the client, with no carriage return-line feed (CRLF) at the end.
      void print(float f)
      Writes a float value to the client, with no carriage return-line feed (CRLF) at the end.
      void print(int i)
      Writes an int to the client, with no carriage return-line feed (CRLF) at the end.
      void print(long l)
      Writes a long value to the client, with no carriage return-line feed (CRLF) at the end.
      void print(String s)
      Writes a String to the client, without a carriage return-line feed (CRLF) character at the end.
      void println()
      Writes a carriage return-line feed (CRLF) to the client.
      void println(boolean b)
      Writes a boolean value to the client, followed by a carriage return-line feed (CRLF).
      void println(char c)
      Writes a character to the client, followed by a carriage return-line feed (CRLF).
      void println(double d)
      Writes a double value to the client, followed by a carriage return-line feed (CRLF).
      void println(float f)
      Writes a float value to the client, followed by a carriage return-line feed (CRLF).
      void println(int i)
      Writes an int to the client, followed by a carriage return-line feed (CRLF) character.
      void println(long l)
      Writes a long value to the client, followed by a carriage return-line feed (CRLF).
      void println(String s)
      Writes a String to the client, followed by a carriage return-line feed (CRLF).
      abstract void setWriteListener(WriteListener writeListener)
      Instructs the ServletOutputStream to invoke the provided WriteListener when it is possible to write

      Erste Seite von API Java Inhaltsverzeichnis Haut

    • Constructor Detail

      • ServletOutputStream

        protected ServletOutputStream()
        Does nothing, because this is an abstract class.

    • Method Detail

      • public void print(String s)
           throws IOException
        Writes a String to the client, without a carriage return-line feed (CRLF) character at the end.
        Parameters:
        s - the String to send to the client
        Throws:
        IOException - if an input or output exception occurred
      • public void print(boolean b)
           throws IOException
        Writes a boolean value to the client, with no carriage return-line feed (CRLF) character at the end.
        Parameters:
        b - the boolean value to send to the client
        Throws:
        IOException - if an input or output exception occurred
      • public void print(char c)
           throws IOException
        Writes a character to the client, with no carriage return-line feed (CRLF) at the end.
        Parameters:
        c - the character to send to the client
        Throws:
        IOException - if an input or output exception occurred
      • public void print(int i)
           throws IOException
        Writes an int to the client, with no carriage return-line feed (CRLF) at the end.
        Parameters:
        i - the int to send to the client
        Throws:
        IOException - if an input or output exception occurred
      • public void print(long l)
           throws IOException
        Writes a long value to the client, with no carriage return-line feed (CRLF) at the end.
        Parameters:
        l - the long value to send to the client
        Throws:
        IOException - if an input or output exception occurred
      • public void print(float f)
           throws IOException
        Writes a float value to the client, with no carriage return-line feed (CRLF) at the end.
        Parameters:
        f - the float value to send to the client
        Throws:
        IOException - if an input or output exception occurred
      • public void print(double d)
           throws IOException
        Writes a double value to the client, with no carriage return-line feed (CRLF) at the end.
        Parameters:
        d - the double value to send to the client
        Throws:
        IOException - if an input or output exception occurred

      • println

        public void println()
             throws IOException
        Writes a carriage return-line feed (CRLF) to the client.
        Throws:
        IOException - if an input or output exception occurred

      • println

        public void println(String s)
             throws IOException
        Writes a String to the client, followed by a carriage return-line feed (CRLF).
        Parameters:
        s - the String to write to the client
        Throws:
        IOException - if an input or output exception occurred

      • println

        public void println(boolean b)
             throws IOException
        Writes a boolean value to the client, followed by a carriage return-line feed (CRLF).
        Parameters:
        b - the boolean value to write to the client
        Throws:
        IOException - if an input or output exception occurred

      • println

        public void println(char c)
             throws IOException
        Writes a character to the client, followed by a carriage return-line feed (CRLF).
        Parameters:
        c - the character to write to the client
        Throws:
        IOException - if an input or output exception occurred

      • println

        public void println(int i)
             throws IOException
        Writes an int to the client, followed by a carriage return-line feed (CRLF) character.
        Parameters:
        i - the int to write to the client
        Throws:
        IOException - if an input or output exception occurred

      • println

        public void println(long l)
             throws IOException
        Writes a long value to the client, followed by a carriage return-line feed (CRLF).
        Parameters:
        l - the long value to write to the client
        Throws:
        IOException - if an input or output exception occurred

      • println

        public void println(float f)
             throws IOException
        Writes a float value to the client, followed by a carriage return-line feed (CRLF).
        Parameters:
        f - the float value to write to the client
        Throws:
        IOException - if an input or output exception occurred

      • println

        public void println(double d)
             throws IOException
        Writes a double value to the client, followed by a carriage return-line feed (CRLF).
        Parameters:
        d - the double value to write to the client
        Throws:
        IOException - if an input or output exception occurred

      • isReady

        public abstract boolean isReady()
        This method can be used to determine if data can be written without blocking.
        Returns:
        true if a write to this ServletOutputStream will succeed, otherwise returns false.
        Since:
        Servlet 3.1

      • setWriteListener

        public abstract void setWriteListener(WriteListener writeListener)
        Instructs the ServletOutputStream to invoke the provided WriteListener when it is possible to write
        Parameters:
        writeListener - the WriteListener that should be notified when it's possible to write
        Throws:
        IllegalStateException - if one of the following conditions is true
        • the associated request is neither upgraded nor the async started
        • setWriteListener is called more than once within the scope of the same request.
        NullPointerException - if writeListener is null
        Since:
        Servlet 3.1

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Dokument erstellt 11/06/2005, zuletzt geändert 18/08/2025
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-javaee-rf-javax/servlet/servletoutputstream.html

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