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Experimental Physics and
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I installed jdk1.5.0 and base3.14.7 and jca binary from jca2.1.2-linux-x86.tgz, added CLASSPATH and LD_LIBRARY_PATH.
Now I excersised the example1.java in the tutorial
, But when I excute "javac example1.java", and got these:
example1.java:12:cannot find symbol
symbol : class JCALibrary
location:class example1
JCALibrary jca= JCALibrary.getInstance();
Who can help me?
I copied the script "example1.java" and configured the file ".JCALibrary.properties" like the following:
// File: example1.java
public class example1 {
public static void main(String[] args) { if(args.length!=1) { System.out.println("usage: java example1 <pvname>"); return; } try { // Get the JCALibrary instance. JCALibrary jca= JCALibrary.getInstance(); // Create a single threaded context with default configuration values.
Context ctxt= jca.createContext(JCALibrary.JNI_SINGLE_THREADED); // Display basic information about the context.
ctxt.printInfo(); // send the request and wait 5.0 seconds for the channel to connect to the PV.
ctxt.pendIO(5.0); // If we're here, then everything went fine.
// Display basic information about the channel. ch.printInfo(); // Disconnect the channel.
ch.destroy(); // Destroy the context.
ctxt.destroy(); } catch(Exception ex) {
System.err.println(ex); } } } //File JCALibrary.properties
#define the location of the epics shared libraries and caRepeater executable
#gov.aps.jca.jni.epics.win32-x86.library.path= c:/epics/baseR3.14.4/bin/win32-x86 #gov.aps.jca.jni.epics.win32-x86.caRepeater.path= c:/epics/baseR3.14.4/bin/win32-x86 gov.aps.jca.jni.epics.linux-x86.library.path= /home/epicsadm/epics3.14.7/base-3.14.7/lib/linux-x86
gov.aps.jca.jni.epics.linux-x86.caRepeater.path= /home/epicsadm/epics3.14.7/base-3.14.7/bin/linux-x86 # define default values for both JNI_THREAD_SAFE and JNI_SINGLE_THREADED contexts.
gov.aps.jca.jni.JNIContext.preemptive_callback= true gov.aps.jca.jni.JNIContext.addr_list="192.168.44.244" gov.aps.jca.jni.JNIContext.auto_addr_list= true gov.aps.jca.jni.JNIContext.connection_timeout= 30.0 gov.aps.jca.jni.JNIContext.beacon_period= 15.0 gov.aps.jca.jni.JNIContext.repeater_port= 5065 gov.aps.jca.jni.JNIContext.server_port= 5064 gov.aps.jca.jni.JNIContext.max_array_bytes= 16384 # define default values only for JNI_SINGLE_THREADED context
gov.aps.jca.jni.SingleThreadedContext.event_dispatcher= gov.aps.jca.event.DirectEventDispatcher # define default values only for JNI_THREAD_SAFE context
gov.aps.jca.jni.ThreadSafeContext.event_dispatcher= gov.aps.jca.event.QueuedEventDispatcher gov.aps.jca.jni.ThreadSafeContext.priority= 5 # define default values for QueuedEventDispatcher components
gov.aps.jca.event.QueuedEventDispatcher= 5 百 万 玩 家 同 玩 的 乐 园,人 气 爆 发 的 梦 幻 西 游
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ANJ, 10 Nov 2011 |
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