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项目描述：用JNA调用硬件厂商自带的dll去读取硬件传回的数据，硬件设置是5000次/秒， Java代码是用生产者消费者模式，缓存区是环形缓冲区。如果把get（）里，磁盘数据为空注释拿掉，会出现大量磁盘数据为空。所以问题应该是出在获取数据的一方，只运行获取数据一方时也会出现丢数据情况，频率和程度差不多同问题描述。问题描述：从读回来的数据的索引来看，大约每500次就丢一些数据，丢2-500个不等的数据。我觉得跟JNA关系不大，难道只是电脑主机性能瓶颈？开发环境MyEclipse10.6 源码： public class AcquireProcessTest { public static void main(String[] args) { CircularBuffer buffer = new CircularBuffer(); AcquireThread acquire = new AcquireThread(buffer); ProcessThread process = new ProcessThread(buffer); acquire.start(); process.start(); } } public class CircularBuffer { int size = 60000;//5000hz时，一分钟的数据 int input = 0; int output = 0; int currentData = 0; double[] buffer = new double[size]; public int address(int i) { return (i+1) == size ? 0 : i+1; } // public double get() public void get() { int pos; while(true) { if(currentData > 0) { // if(output%2 == 1) // { System.out.println(buffer[output]); // } pos = output; output = address(output); currentData--; // return buffer[pos]; } else { // System.out.println("缓存区是空的"); continue; // System.out.println("缓存区是空的"); // return 0.0; } } } public void put() { Preparatory.initialize(); for(String key : Preparatory.getDeviceInfo().keySet())//取得设备信息 { System.out.println(key + " :" + Preparatory.getDeviceInfo().get(key)); } //设置工作模式 short mode = 0; if(!Sense2020Dll.INSTANCE.DLL_Set_Sensor_Mode(mode)) System.out.println("设置解调仪工作状态失败"); //设置积分时间 Preparatory.setIntegrationTime(20, (short)5000); // int pixelCount = Sense2020Dll.INSTANCE.DLL_Get_Pixel_Count(); if(currentData < size) { // Preparatory.initialize(); short peakSearchMode = 0; //噪声 double noiseThreshold = 10000; int pixelCount = Sense2020Dll.INSTANCE.DLL_Get_Pixel_Count(); double[] noiseThresholdProfile = new double[pixelCount]; short processMode = 4; short externalTimingMode = 2; short externalTriggerMode = 0; double[] backgroundData = new double[pixelCount]; int constantlyGrabstate = Sense2020Dll.INSTANCE.DLL_Start_Constantly_Grab_Spectra(processMode, peakSearchMode, externalTimingMode, externalTriggerMode, backgroundData, noiseThreshold, noiseThresholdProfile); System.out.println(constantlyGrabstate); int lastSpectrumIndex = 0 ; int oldSpectrumIndex = -1 ; while(true) { lastSpectrumIndex = Sense2020Dll.INSTANCE.DLL_Get_Last_Spectrum_Index(); if(lastSpectrumIndex == oldSpectrumIndex) { continue; } oldSpectrumIndex = lastSpectrumIndex; buffer[input] = (double)oldSpectrumIndex; input = address(input); currentData++; int[] peakInfo = new int[pixelCount]; Sense2020Dll.INSTANCE.DLL_Get_Constantly_Grab_Peaks(oldSpectrumIndex, peakInfo); int peakNum = peakInfo[1]; // System.out.println(oldSpectrumIndex); for(int i = 2 ; i < peakNum + 2 ; i ++ ) { // System.out.println((double)peakInfo[i]/1000); buffer[input] = (double)peakInfo[i]/1000; input = address(input); currentData++; } } } else { System.out.println("缓存区满了..."); } } } public class ProcessThread extends Thread { CircularBuffer buffer ; public ProcessThread(CircularBuffer buffer) { this.buffer = buffer; } //处理数据 @Override public void run() { buffer.get(); } } public class AcquireThread extends Thread { CircularBuffer buffer ; public AcquireThread(CircularBuffer buffer) { this.buffer = buffer; } //获取数据，生产数据 @Override public void run() { while(true) { buffer.put(); } } }

[问题]JNA从硬件读数据时，有丢数据的情况