多线程 通过管道进行线程间通信
2017-08-20 16:39
323 查看
通过管道进行线程间通信
* 在Java语言中提供了各种各样的输入/输出流Stream,使我们能够狠方便地对数据进行操作,其中管道
流式一种特殊的流,用于在不同线程间直接传输数据。一个线程发送数据到输出管道,另一个线程
从输入管道中读数据。通过使用管道,实现不同线程间的通信。
* 在java的JDK中提供了4个类来使线程间可以进行通信
1. PipedInputStream和PipedOutputStream
2. PipedReader和PipedWriter
1. 字节流
* 举个栗子
public class WriteData {
public void writeMethod(PipedOutputStream out){
try{
System.out.println("write :");
for(int i=0;i<300;i++){
String outData=""+(i+1);
out.write(outData.getBytes());
System.out.print(outData);
}
System.out.println();
out.close();
}catch (IOException e){
e.printStackTrace();
}
}
}
public class ReadData {
public void readMethod(PipedInputStream input){
try {
System.out.println("read :");
byte[] byteArray=new byte[20];
int readLength=input.read(byteArray);
while(readLength!=-1){
String newData=new String(byteArray,0,readLength);
System.out.print(newData);
readLength=input.read(byteArray);
}
System.out.println();
input.close();
}catch (IOException e){
e.printStackTrace();
}
}
}
public class ThreadWrite extends Thread {
private WriteData write;
private PipedOutputStream out;
public ThreadWrite(WriteData write,PipedOutputStream out){
super();
this.write=write;
this.out=out;
}
@Override
public void run() {
write.writeMethod(out);
}
}
public class ThreadRead extends Thread{
private ReadData read;
private PipedInputStream input;
public ThreadRead(ReadData read,PipedInputStream input){
super();
this.read=read;
this.input=input;
}
@Override
public void run() {
read.readMethod(input);
}
}
public class Run {
public static void main(String[] args){
try{
WriteData writeData=new WriteData();
ReadData readData=new ReadData();
PipedInputStream inputStream=new PipedInputStream();
PipedOutputStream outputStream=new PipedOutputStream();
outputStream.connect(inputStream);
ThreadRead threadRead=new ThreadRead(readData,inputStream);
threadRead.start();
Thread.sleep(2000);
ThreadWrite threadWrite=new ThreadWrite(writeData,outputStream);
threadWrite.start();
}catch (IOException e){
e.printStackTrace();
}catch (InterruptedException e){
e.printStackTrace();
}
}
}
注释:outputStream.connect(inputStream)的作用使两个Stream之间产生通信链接。
在没有数据被写入是,int readLength=in.read(byteArray)处于阻塞状态,直到
有数据被写入,才继续向下运行。
2. 字符流
* 举个栗子
public class WriteData {
public void writeMethod(PipedWriter out){
try{
System.out.println("write :");
for(int i=0;i<300;i++){
String outData=""+(i+1);
out.write(outData);
System.out.print(outData);
}
System.out.println();
out.close();
}catch (IOException e){
e.printStackTrace();
}
}
}
public class ReadData {
public void readMethod(PipedReader input){
try{
System.out.println("read :");
char[] byteArray=new char[20];
int readLength=input.read(byteArray);
while(readLength!=-1){
String newData=new String(byteArray,0,readLength);
System.out.print(newData);
readLength=input.read(byteArray);
}
System.out.println();
input.close();
}catch (IOException e){
e.printStackTrace();
}
}
}
public class ThreadWrite extends Thread{
private WriteData write;
private PipedWriter out;
public ThreadWrite(WriteData write,PipedWriter out){
super();
this.write=write;
this.out=out;
}
@Override
public void run() {
write.writeMethod(out);
}
}
public class ThreadRead extends Thread{
private ReadData read;
private PipedReader input;
public ThreadRead(ReadData read,PipedReader input){
super();
this.read=read;
this.input=input;
}
@Override
public void run() {
read.readMethod(input);
}
}
public class Run {
public static void main(String[] args){
try{
WriteData writeData=new WriteData();
ReadData readData=new ReadData();
PipedReader inputStream=new PipedReader();
PipedWriter outputStream=new PipedWriter();
outputStream.connect(inputStream);
c20c
ThreadRead threadRead=new ThreadRead(readData,inputStream);
threadRead.start();
Thread.sleep(2000);
ThreadWrite threadWrite=new ThreadWrite(writeData,outputStream);
threadWrite.start();
}catch (IOException e){
e.printStackTrace();
}catch (InterruptedException e){
e.printStackTrace();
}
}
}
* 和字节流类似,就是输入输出会更加方便。
* 在Java语言中提供了各种各样的输入/输出流Stream,使我们能够狠方便地对数据进行操作,其中管道
流式一种特殊的流,用于在不同线程间直接传输数据。一个线程发送数据到输出管道,另一个线程
从输入管道中读数据。通过使用管道,实现不同线程间的通信。
* 在java的JDK中提供了4个类来使线程间可以进行通信
1. PipedInputStream和PipedOutputStream
2. PipedReader和PipedWriter
1. 字节流
* 举个栗子
public class WriteData {
public void writeMethod(PipedOutputStream out){
try{
System.out.println("write :");
for(int i=0;i<300;i++){
String outData=""+(i+1);
out.write(outData.getBytes());
System.out.print(outData);
}
System.out.println();
out.close();
}catch (IOException e){
e.printStackTrace();
}
}
}
public class ReadData {
public void readMethod(PipedInputStream input){
try {
System.out.println("read :");
byte[] byteArray=new byte[20];
int readLength=input.read(byteArray);
while(readLength!=-1){
String newData=new String(byteArray,0,readLength);
System.out.print(newData);
readLength=input.read(byteArray);
}
System.out.println();
input.close();
}catch (IOException e){
e.printStackTrace();
}
}
}
public class ThreadWrite extends Thread {
private WriteData write;
private PipedOutputStream out;
public ThreadWrite(WriteData write,PipedOutputStream out){
super();
this.write=write;
this.out=out;
}
@Override
public void run() {
write.writeMethod(out);
}
}
public class ThreadRead extends Thread{
private ReadData read;
private PipedInputStream input;
public ThreadRead(ReadData read,PipedInputStream input){
super();
this.read=read;
this.input=input;
}
@Override
public void run() {
read.readMethod(input);
}
}
public class Run {
public static void main(String[] args){
try{
WriteData writeData=new WriteData();
ReadData readData=new ReadData();
PipedInputStream inputStream=new PipedInputStream();
PipedOutputStream outputStream=new PipedOutputStream();
outputStream.connect(inputStream);
ThreadRead threadRead=new ThreadRead(readData,inputStream);
threadRead.start();
Thread.sleep(2000);
ThreadWrite threadWrite=new ThreadWrite(writeData,outputStream);
threadWrite.start();
}catch (IOException e){
e.printStackTrace();
}catch (InterruptedException e){
e.printStackTrace();
}
}
}
注释:outputStream.connect(inputStream)的作用使两个Stream之间产生通信链接。
在没有数据被写入是,int readLength=in.read(byteArray)处于阻塞状态,直到
有数据被写入,才继续向下运行。
2. 字符流
* 举个栗子
public class WriteData {
public void writeMethod(PipedWriter out){
try{
System.out.println("write :");
for(int i=0;i<300;i++){
String outData=""+(i+1);
out.write(outData);
System.out.print(outData);
}
System.out.println();
out.close();
}catch (IOException e){
e.printStackTrace();
}
}
}
public class ReadData {
public void readMethod(PipedReader input){
try{
System.out.println("read :");
char[] byteArray=new char[20];
int readLength=input.read(byteArray);
while(readLength!=-1){
String newData=new String(byteArray,0,readLength);
System.out.print(newData);
readLength=input.read(byteArray);
}
System.out.println();
input.close();
}catch (IOException e){
e.printStackTrace();
}
}
}
public class ThreadWrite extends Thread{
private WriteData write;
private PipedWriter out;
public ThreadWrite(WriteData write,PipedWriter out){
super();
this.write=write;
this.out=out;
}
@Override
public void run() {
write.writeMethod(out);
}
}
public class ThreadRead extends Thread{
private ReadData read;
private PipedReader input;
public ThreadRead(ReadData read,PipedReader input){
super();
this.read=read;
this.input=input;
}
@Override
public void run() {
read.readMethod(input);
}
}
public class Run {
public static void main(String[] args){
try{
WriteData writeData=new WriteData();
ReadData readData=new ReadData();
PipedReader inputStream=new PipedReader();
PipedWriter outputStream=new PipedWriter();
outputStream.connect(inputStream);
c20c
ThreadRead threadRead=new ThreadRead(readData,inputStream);
threadRead.start();
Thread.sleep(2000);
ThreadWrite threadWrite=new ThreadWrite(writeData,outputStream);
threadWrite.start();
}catch (IOException e){
e.printStackTrace();
}catch (InterruptedException e){
e.printStackTrace();
}
}
}
* 和字节流类似,就是输入输出会更加方便。
相关文章推荐
- 多线程(六)~通过管道进行线程之间的通信:字节流、字符流
- JAVA多线程-线程间通信(三)-通过管道进行线程间通信
- windows多线程之----通过隐藏窗口进行线程间通信!
- 通过管道进行线程间通信:字节流。字符流的用法及API类似
- java线程间通信之通过管道进行通信
- 线程之间通过管道通信
- 多线程编程-线程间通信.管道(五)
- Qt学习系列之四:多线程及通过事件进行通信
- QT:多线程及通过事件进行通信
- 在libevent中使用线程池(采用管道来进行线程的通信)
- 利用VB.Net 通过Windows Sockets (Winsock)以及多线程编程进行桌面电脑与Pocket PC间的双向通信
- 通过命令管道,在进程之间进行通信的简单例子
- [ZZ]使用命名管道通过网络在进程之间进行通信
- !!c# 委托与多线程 -- 相比background来说,本方法针对当需要通过异步代理发起UI操作,而后线程中进行sleep操作的时使用
- 子线程与主线程通过Handler进行通信
- java 通过使用wait和notify进行线程之间通信(代码)
- C#使用命名管道通过网络在进程之间进行通信
- Java多线程之通过管道线程间通信(字节流、字符流),类ThreadLocal与类InheritableThreadLocal的使用
- 父进程下的两个子进程通过管道进行通信
- 使用命名管道通过网络在进程之间进行通信(C#)