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      ·The standard Java class library may not support the platform-dependent features needed by your application.
      ·You may already have a library or application written in another programming language and you wish to make it accessible to Java applications
      ·You may want to implement a small portion of time-critical code in a lower-level programming language, such as assembly, and then have your Java application call these functions
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class HelloWorld {
public native void displayHelloWorld();
static {
System.loadLibrary("hello");
}
public static void main(String[] args) {
new HelloWorld().displayHelloWorld();
}
}
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Problem: email thread is hanging at socket read
Today we found a email problem in production, all of the mail threads (3 threads) are hanging/sitting/blocking at same point
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
......

java µ÷Óà delphi±àдµÄdll


ÓÐЩʱºò,ҪдһЩ³ÌÐò,ÔÚ JAVA ÀïÃæºÃÄÑʵÏÖ, µ«Èç¹ûʹÓÃÆäËü±à³ÌÓïÑÔÈ´ÓֱȽÏÈÝÒ×ʱ,ÎÒÃDz»·Áͨ¹ý JNI À´Èò»Í¬ÓïÑԵijÌÐò¹²Í¬Íê³É.
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