Java 如何使用readline（）获取并存储每2秒生成的字符串
如何使用Java 如何使用readline（）获取并存储每2秒生成的字符串,java,sockets,Java,Sockets,如何使用readline（）获取并存储每2秒生成的字符串？套接字编程 #接收器 try { while (true) { Socket socket = ss.accept(); InputStream is = socket.getInputStream(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr);
readline（）try {
while (true) {
Socket socket = ss.accept();
InputStream is = socket.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
//payload = br.readLine();
// payload = String.parseString(br.read(char getdata[],0, 65535));//valueOf(char)
//br.reset();
int payload_length = payload.length();
System.out.println("Message sent from client: " + payload + ":: Length ::" + payload_length);
if (payload_length == stringLength) {
// for(int k=0;k>=s;k++){
System.out.println("String length matching");
String Query1 = "INSERT INTO RpiBuffer (string) values(?)"; //,(payload);
pst1 = conn.prepareStatement(Query1);
// pst1.setInt(1, id);
pst1.setString(1, payload);
//pst1.setInt(3,isSend);
pst1.executeUpdate();
System.out.println("Query 1 Executed::" + pst1);
// }
} else {
System.out.println("String length not matching");
}
/* ---------------------------------------------------------------------*/
OutputStream os = socket.getOutputStream();
OutputStreamWriter osw = new OutputStreamWriter(os);
BufferedWriter bw = new BufferedWriter(osw);
// bw.write(returnedMessage);
bw.newLine();
// System.out.println("Message replied to client: "+returnedMessage);
bw.flush();
check_internet();
}
} catch (IOException e) {
System.out.println("Exception in receive_data())::" + e);
}
import java.io.*;
import java.net.*;
import java.util.concurrent.TimeUnit;
public class EchoClient {
public static void main(String[] args) throws InterruptedException {
String hostName = "127.0.0.1";
int portNumber = 3002;
int StringLength = 22;
int i=0;
while(true){ //for(i=0;i<99;i++){
try {
Socket echoSocket = new Socket(hostName, portNumber);
// PrintWriter out = new PrintWriter(echoSocket.getOutputStream(), true);
BufferedReader in = new BufferedReader( new InputStreamReader(echoSocket.getInputStream()));
BufferedWriter out= new BufferedWriter( new OutputStreamWriter(echoSocket.getOutputStream()));
String s1="1231231231231231231234",s2="0001110001110001110001",s3="0101010101",s4="1111000011110000111100";
out.write(s1);System.out.println("send data1 successfully????? ");TimeUnit.SECONDS.sleep(2);
out.write(s2);System.out.println("send data2 successfully????? ");TimeUnit.SECONDS.sleep(2);
out.write(s3);System.out.println("send data3 successfully????? ");TimeUnit.SECONDS.sleep(2);
out.write(s4);System.out.println("send data4 successfully????? ");TimeUnit.SECONDS.sleep(2);
/* String userInput;
while ((userInput = stdIn.readLine()) != null) {
out.println(userInput);
System.out.println("echo: " + in.readLine());
}*/
} catch (UnknownHostException e) {
System.err.println("Don't know about host " + hostName);
// System.exit(1);
} catch (IOException e) {
System.err.println("Couldn't get I/O for the connection to " +
hostName);
//System.exit(1);
}
}
}
}
try {
while (true) {
Socket socket = ss.accept();
InputStream is = socket.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
//payload = br.readLine();
// payload = String.parseString(br.read(char getdata[],0, 65535));//valueOf(char)
//br.reset();
int payload_length = payload.length();
System.out.println("Message sent from client: " + payload + ":: Length ::" + payload_length);
if (payload_length == stringLength) {
// for(int k=0;k>=s;k++){
System.out.println("String length matching");
String Query1 = "INSERT INTO RpiBuffer (string) values(?)"; //,(payload);
pst1 = conn.prepareStatement(Query1);
// pst1.setInt(1, id);
pst1.setString(1, payload);
//pst1.setInt(3,isSend);
pst1.executeUpdate();
System.out.println("Query 1 Executed::" + pst1);
// }
} else {
System.out.println("String length not matching");
}
/* ---------------------------------------------------------------------*/
OutputStream os = socket.getOutputStream();
OutputStreamWriter osw = new OutputStreamWriter(os);
BufferedWriter bw = new BufferedWriter(osw);
// bw.write(returnedMessage);
bw.newLine();
// System.out.println("Message replied to client: "+returnedMessage);
bw.flush();
check_internet();
}
} catch (IOException e) {
System.out.println("Exception in receive_data())::" + e);
}
import java.io.*;
import java.net.*;
import java.util.concurrent.TimeUnit;
public class EchoClient {
public static void main(String[] args) throws InterruptedException {
String hostName = "127.0.0.1";
int portNumber = 3002;
int StringLength = 22;
int i=0;
while(true){ //for(i=0;i<99;i++){
try {
Socket echoSocket = new Socket(hostName, portNumber);
// PrintWriter out = new PrintWriter(echoSocket.getOutputStream(), true);
BufferedReader in = new BufferedReader( new InputStreamReader(echoSocket.getInputStream()));
BufferedWriter out= new BufferedWriter( new OutputStreamWriter(echoSocket.getOutputStream()));
String s1="1231231231231231231234",s2="0001110001110001110001",s3="0101010101",s4="1111000011110000111100";
out.write(s1);System.out.println("send data1 successfully????? ");TimeUnit.SECONDS.sleep(2);
out.write(s2);System.out.println("send data2 successfully????? ");TimeUnit.SECONDS.sleep(2);
out.write(s3);System.out.println("send data3 successfully????? ");TimeUnit.SECONDS.sleep(2);
out.write(s4);System.out.println("send data4 successfully????? ");TimeUnit.SECONDS.sleep(2);
/* String userInput;
while ((userInput = stdIn.readLine()) != null) {
out.println(userInput);
System.out.println("echo: " + in.readLine());
}*/
} catch (UnknownHostException e) {
System.err.println("Don't know about host " + hostName);
// System.exit(1);
} catch (IOException e) {
System.err.println("Couldn't get I/O for the connection to " +
hostName);
//System.exit(1);
}
}
}
}
在Receiver sideQuestions寻求调试帮助（“此代码为什么不工作？”）中已经提到的目标ip和端口号必须包括所需的行为、特定的问题或错误以及在问题本身中重现它所需的最短代码。没有明确问题陈述的问题对其他读者没有用处。请参阅：。请在问题本身（即问题）中添加其他信息，而不是使用注释。同时，请修改格式，并添加一些文本，说明您面临的问题或出现的错误以及您已采取的措施。发件人发送
4字符串（即s1、s2、s3和s4）30002端口上