本文整理汇总了Java中javax.imageio.ImageIO.getCacheDirectory方法的典型用法代码示例。如果您正苦于以下问题：Java ImageIO.getCacheDirectory方法的具体用法？Java ImageIO.getCacheDirectory怎么用？Java ImageIO.getCacheDirectory使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javax.imageio.ImageIO的用法示例。
在下文中一共展示了ImageIO.getCacheDirectory方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: run
import javax.imageio.ImageIO; //导入方法依赖的package包/类
public void run() {
// System.out.println("Thread " + threadName + " in thread group " +
// getThreadGroup().getName());
// Create a new AppContext as though we were an applet
SunToolkit.createNewAppContext();
// Get default registry and store reference
this.registry = IIORegistry.getDefaultInstance();
for (int i = 0; i < 10; i++) {
// System.out.println(threadName +
// ": setting cache parameters to " +
// useCache + ", " + cacheDirectory);
ImageIO.setUseCache(useCache);
ImageIO.setCacheDirectory(cacheDirectory);
try {
sleep(1000L);
} catch (InterruptedException e) {
}
// System.out.println(threadName + ": reading cache parameters");
boolean newUseCache = ImageIO.getUseCache();
File newCacheDirectory = ImageIO.getCacheDirectory();
if (newUseCache != useCache ||
newCacheDirectory != cacheDirectory) {
// System.out.println(threadName + ": got " +
// newUseCache + ", " +
// newCacheDirectory);
// System.out.println(threadName + ": crosstalk encountered!");
gotCrosstalk = true;
}
}
}
示例2: main
import javax.imageio.ImageIO; //导入方法依赖的package包/类
public static void main(String[] args) throws IOException {
ByteArrayInputStream is =
new ByteArrayInputStream(new byte[100]);
ByteArrayOutputStream os =
new ByteArrayOutputStream();
String tmp = System.getProperty("java.io.tmpdir", ".");
System.out.println("tmp: " + tmp);
// count number of files before test
ImageIO.setUseCache(true);
ImageIO.setCacheDirectory(new File(tmp));
File tmpDir = ImageIO.getCacheDirectory();
System.out.println("tmpDir is " + tmpDir);
int fnum_before = tmpDir.list().length;
System.out.println("Files before test: " + fnum_before);
ImageInputStream iis =
ImageIO.createImageInputStream(is);
System.out.println("iis = " + iis);
ImageInputStream iis2 =
ImageIO.createImageInputStream(is);
ImageOutputStream ios =
ImageIO.createImageOutputStream(os);
System.out.println("ios = " + ios);
ImageOutputStream ios2 =
ImageIO.createImageOutputStream(os);
iis2.close();
ios2.close();
int fnum_after = tmpDir.list().length;
System.out.println("Files after test: " + fnum_after);
if (fnum_before == fnum_after) {
throw new RuntimeException("Test failed: cache was not used.");
}
}