org.apache.jasper.runtime
类 BodyContentImpl

java.lang.Object
  java.io.Writer
      javax.servlet.jsp.JspWriter
          javax.servlet.jsp.tagext.BodyContent
              org.apache.jasper.runtime.BodyContentImpl

所有已实现的接口：

Closeable, Flushable, Appendable

public class BodyContentImpl
extends BodyContent

Write text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings. Provide support for discarding for the output that has been buffered.

作者：

Rajiv Mordani, Jan Luehe

字段摘要

从类 javax.servlet.jsp.JspWriter 继承的字段

autoFlush, bufferSize, DEFAULT_BUFFER, NO_BUFFER, UNBOUNDED_BUFFER

从类 java.io.Writer 继承的字段

lock

构造方法摘要

BodyContentImpl(JspWriter enclosingWriter)
Constructor.

方法摘要

void	clear() Clear the contents of the buffer.
void	clearBuffer() Clears the current contents of the buffer.
void	close() Close the stream, flushing it first.
Reader	getReader() Return the value of this BodyJspWriter as a Reader.
int	getRemaining() This method returns the number of unused bytes in the buffer.
String	getString() Return the value of the BodyJspWriter as a String.
static void	main(String[] args)
void	newLine() Write a line separator.
void	print(boolean b) Print a boolean value.
void	print(char c) Print a character.
void	print(char[] s) Print an array of characters.
void	print(double d) Print a double-precision floating-point number.
void	print(float f) Print a floating-point number.
void	print(int i) Print an integer.
void	print(long l) Print a long integer.
void	print(Object obj) Print an object.
void	print(String s) Print a string.
void	println() Terminate the current line by writing the line separator string.
void	println(boolean x) Print a boolean value and then terminate the line.
void	println(char x) Print a character and then terminate the line.
void	println(char[] x) Print an array of characters and then terminate the line.
void	println(double x) Print a double-precision floating-point number and then terminate the line.
void	println(float x) Print a floating-point number and then terminate the line.
void	println(int x) Print an integer and then terminate the line.
void	println(long x) Print a long integer and then terminate the line.
void	println(Object x) Print an Object and then terminate the line.
void	println(String x) Print a String and then terminate the line.
void	write(char[] buf) Write an array of characters.
void	write(char[] cbuf, int off, int len) Write a portion of an array of characters.
void	write(int c) Write a single character.
void	write(String s) Write a string.
void	write(String s, int off, int len) Write a portion of a String.
void	writeOut(Writer out) Write the contents of this BodyJspWriter into a Writer.

从类 javax.servlet.jsp.tagext.BodyContent 继承的方法

clearBody, flush, getEnclosingWriter

从类 javax.servlet.jsp.JspWriter 继承的方法

getBufferSize, isAutoFlush

从类 java.io.Writer 继承的方法

append, append, append

从类 java.lang.Object 继承的方法

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造方法详细信息

BodyContentImpl

public BodyContentImpl(JspWriter enclosingWriter)

Constructor.

方法详细信息

write

public void write(int c)
           throws IOException

Write a single character.

覆盖：

类 Writer 中的 write

抛出：

IOException

write

public void write(char[] cbuf,
                  int off,
                  int len)
           throws IOException

Write a portion of an array of characters.

Ordinarily this method stores characters from the given array into this stream's buffer, flushing the buffer to the underlying stream as needed. If the requested length is at least as large as the buffer, however, then this method will flush the buffer and write the characters directly to the underlying stream. Thus redundant DiscardableBufferedWriters will not copy data unnecessarily.

指定者：

类 Writer 中的 write

参数：

cbuf - A character array

off - Offset from which to start reading characters

len - Number of characters to write

抛出：

IOException

write

public void write(char[] buf)
           throws IOException

Write an array of characters. This method cannot be inherited from the Writer class because it must suppress I/O exceptions.

覆盖：

类 Writer 中的 write

抛出：

IOException

write

public void write(String s,
                  int off,
                  int len)
           throws IOException

Write a portion of a String.

覆盖：

类 Writer 中的 write

参数：

s - String to be written

off - Offset from which to start reading characters

len - Number of characters to be written

抛出：

IOException

write

public void write(String s)
           throws IOException

Write a string. This method cannot be inherited from the Writer class because it must suppress I/O exceptions.

覆盖：

类 Writer 中的 write

抛出：

IOException

newLine

public void newLine()
             throws IOException

Write a line separator. The line separator string is defined by the system property line.separator, and is not necessarily a single newline ('\n') character.

指定者：

类 JspWriter 中的 newLine

抛出：

IOException - If an I/O error occurs

print

public void print(boolean b)
           throws IOException

Print a boolean value. The string produced by String.valueOf(boolean) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

指定者：

类 JspWriter 中的 print

参数：

b - The boolean to be printed

抛出：

IOException

print

public void print(char c)
           throws IOException

Print a character. The character is translated into one or more bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

指定者：

类 JspWriter 中的 print

参数：

c - The char to be printed

抛出：

IOException

print

public void print(int i)
           throws IOException

Print an integer. The string produced by String.valueOf(int) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

指定者：

类 JspWriter 中的 print

参数：

i - The int to be printed

抛出：

IOException

另请参见：

Integer.toString(int)

print

public void print(long l)
           throws IOException

Print a long integer. The string produced by String.valueOf(long) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

指定者：

类 JspWriter 中的 print

参数：

l - The long to be printed

抛出：

IOException

另请参见：

Long.toString(long)

print

public void print(float f)
           throws IOException

Print a floating-point number. The string produced by String.valueOf(float) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

指定者：

类 JspWriter 中的 print

参数：

f - The float to be printed

抛出：

IOException

另请参见：

Float.toString(float)

print

public void print(double d)
           throws IOException

Print a double-precision floating-point number. The string produced by String.valueOf(double) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

指定者：

类 JspWriter 中的 print

参数：

d - The double to be printed

抛出：

IOException

另请参见：

Double.toString(double)

print

public void print(char[] s)
           throws IOException

Print an array of characters. The characters are converted into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

指定者：

类 JspWriter 中的 print

参数：

s - The array of chars to be printed

抛出：

NullPointerException - If s is null

IOException

print

public void print(String s)
           throws IOException

Print a string. If the argument is null then the string "null" is printed. Otherwise, the string's characters are converted into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

指定者：

类 JspWriter 中的 print

参数：

s - The String to be printed

抛出：

IOException

print

public void print(Object obj)
           throws IOException

Print an object. The string produced by the String.valueOf(Object) method is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

指定者：

类 JspWriter 中的 print

参数：

obj - The Object to be printed

抛出：

IOException

另请参见：

Object.toString()

println

public void println()
             throws IOException

Terminate the current line by writing the line separator string. The line separator string is defined by the system property line.separator, and is not necessarily a single newline character ('\n').

指定者：

类 JspWriter 中的 println

抛出：

IOException

println

public void println(boolean x)
             throws IOException

Print a boolean value and then terminate the line. This method behaves as though it invokes print(boolean) and then println().

指定者：

类 JspWriter 中的 println

参数：

x - the boolean to write

抛出：

IOException

println

public void println(char x)
             throws IOException

Print a character and then terminate the line. This method behaves as though it invokes print(char) and then println().

指定者：

类 JspWriter 中的 println

参数：

x - the char to write

抛出：

IOException

println

public void println(int x)
             throws IOException

Print an integer and then terminate the line. This method behaves as though it invokes print(int) and then println().

指定者：

类 JspWriter 中的 println

参数：

x - the int to write

抛出：

IOException

println

public void println(long x)
             throws IOException

Print a long integer and then terminate the line. This method behaves as though it invokes print(long) and then println().

指定者：

类 JspWriter 中的 println

参数：

x - the long to write

抛出：

IOException

println

public void println(float x)
             throws IOException

Print a floating-point number and then terminate the line. This method behaves as though it invokes print(float) and then println().

指定者：

类 JspWriter 中的 println

参数：

x - the float to write

抛出：

IOException

println

public void println(double x)
             throws IOException

Print a double-precision floating-point number and then terminate the line. This method behaves as though it invokes print(double) and then println().

指定者：

类 JspWriter 中的 println

参数：

x - the double to write

抛出：

IOException

println

public void println(char[] x)
             throws IOException

Print an array of characters and then terminate the line. This method behaves as though it invokes print(char[]) and then println().

指定者：

类 JspWriter 中的 println

参数：

x - the char[] to write

抛出：

IOException

println

public void println(String x)
             throws IOException

Print a String and then terminate the line. This method behaves as though it invokes print(String) and then println().

指定者：

类 JspWriter 中的 println

参数：

x - the String to write

抛出：

IOException

println

public void println(Object x)
             throws IOException

Print an Object and then terminate the line. This method behaves as though it invokes print(Object) and then println().

指定者：

类 JspWriter 中的 println

参数：

x - the Object to write

抛出：

IOException

clear

public void clear()
           throws IOException

Clear the contents of the buffer. If the buffer has been already been flushed then the clear operation shall throw an IOException to signal the fact that some data has already been irrevocably written to the client response stream.

指定者：

类 JspWriter 中的 clear

抛出：

IOException - If an I/O error occurs

clearBuffer

public void clearBuffer()
                 throws IOException

Clears the current contents of the buffer. Unlike clear(), this mehtod will not throw an IOException if the buffer has already been flushed. It merely clears the current content of the buffer and returns.

指定者：

类 JspWriter 中的 clearBuffer

抛出：

IOException - If an I/O error occurs

close

public void close()
           throws IOException

Close the stream, flushing it first. Once a stream has been closed, further write() or flush() invocations will cause an IOException to be thrown. Closing a previously-closed stream, however, has no effect.

指定者：

接口 Closeable 中的 close

指定者：

类 JspWriter 中的 close

抛出：

IOException - If an I/O error occurs

getRemaining

public int getRemaining()

从类 JspWriter 复制的描述

This method returns the number of unused bytes in the buffer.

指定者：

类 JspWriter 中的 getRemaining

返回：

the number of bytes unused in the buffer

getReader

public Reader getReader()

Return the value of this BodyJspWriter as a Reader. Note: this is after evaluation!! There are no scriptlets, etc in this stream.

指定者：

类 BodyContent 中的 getReader

返回：

the value of this BodyJspWriter as a Reader

getString

public String getString()

Return the value of the BodyJspWriter as a String. Note: this is after evaluation!! There are no scriptlets, etc in this stream.

指定者：

类 BodyContent 中的 getString

返回：

the value of the BodyJspWriter as a String

writeOut

public void writeOut(Writer out)
              throws IOException

Write the contents of this BodyJspWriter into a Writer. Subclasses are likely to do interesting things with the implementation so some things are extra efficient.

指定者：

类 BodyContent 中的 writeOut

参数：

out - The writer into which to place the contents of this body evaluation

抛出：

IOException - if an I/O error occurred while writing the contents of this BodyContent to the given Writer

main

public static void main(String[] args)
                 throws Exception

抛出：

Exception