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最近我開始研究Java Servlet異步功能。我已經寫了下面顯示的示例代碼來檢查aysnc功能。我在單核處理器上運行它。我從jsp提交了100個請求（圖片請求）。我在代碼中添加了「Request Submmited :::」SOP。它顯示第一個0到6請求的SOP，然後一段時間後顯示SOP爲6到11 ....爲什麼它不顯示所有100個請求的SOP。Java Servlet異步支持
package com.test;
import java.io.FileInputStream;
import java.io.IOException;
import javax.servlet.AsyncContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(urlPatterns={"/Test"}, asyncSupported = true)
public class Test extends HttpServlet {
private static final long serialVersionUID = 1L;
public Test() {
super();
}
int counter = 0;
@Override
protected void doGet(final HttpServletRequest request,
final HttpServletResponse response) throws ServletException,
IOException {
System.out.println("Request Submmited:::" + counter++);
final AsyncContext ctx = request.startAsync();
ctx.start(new Runnable() {
public void run() {
try {
String count = request.getParameter("test");
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
FileInputStream fin = new FileInputStream(
"D:/TESTImages/8_0_0_NUCLEI" + count + ".jpg");
byte[] data = new byte[fin.available()];
fin.read(data);
response.getWriter().print(new String(data));
response.flushBuffer();
} catch (Exception e) {
e.printStackTrace();
}
ctx.complete();
}
});
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}
}