java.net.URLClassLoader.getResourceAsStream()方法的使用及代码示例

x33g5p2x  于2022-01-31 转载在 其他  
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本文整理了Java中java.net.URLClassLoader.getResourceAsStream()方法的一些代码示例，展示了URLClassLoader.getResourceAsStream()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。URLClassLoader.getResourceAsStream()方法的具体详情如下：
包路径：java.net.URLClassLoader
类名称：URLClassLoader
方法名：getResourceAsStream

URLClassLoader.getResourceAsStream介绍

暂无

代码示例

代码示例来源：origin: robolectric/robolectric

  1. private InputStream getClassBytesAsStreamPreferringLocalUrls(String resName) {
  2.  InputStream fromUrlsClassLoader = urls.getResourceAsStream(resName);
  3.  if (fromUrlsClassLoader != null) {
  4.   return fromUrlsClassLoader;
  5.  }
  6.  return super.getResourceAsStream(resName);
  7. }

代码示例来源：origin: alibaba/jstorm

  1. public InputStream getResourceAsStream(String name) {
  2.     InputStream is = super.getResourceAsStream(name);
  3.     if (is == null) {
  4.       is = defaultClassLoader.getResourceAsStream(name);
  5.     }
  6.     return is;
  7.   }
  8. }

代码示例来源：origin: apache/ignite

  1. /** {@inheritDoc} */
  2. @Override public InputStream getResourceAsStream(String name) {
  3.   // Find resource in GAR file first.
  4.   InputStream in = getResourceAsStreamGarOnly(name);
  5.   // Find resource in parent class loader.
  6.   if (in == null)
  7.     in = ClassLoader.getSystemResourceAsStream(name);
  8.   if (in == null)
  9.     in = super.getResourceAsStream(name);
  10.   return in;
  11. }

代码示例来源：origin: embulk/embulk

  1. private InputStream getResourceAsStreamFromChild(final String resourceName) {
  2.   if (this.oneNestedJarUrlBase == null || this.embeddedJarPathsInNestedJar.isEmpty()) {
  3.     // Multiple flat JARs -- Gem-based plugins, or Single JAR (JAR-based plugins) without any embedded JAR
  4.     return super.getResourceAsStream(resourceName);
  5.   } else {
  6.     // Single nested JAR -- JAR-based plugins
  7.     // Resources directly in the plugin JAR are prioritized.
  8.     final InputStream inputStream = super.getResourceAsStream(resourceName);
  9.     if (inputStream == null) {
  10.       try {
  11.         final InputStream childInputStream = AccessController.doPrivileged(
  12.             new PrivilegedExceptionAction<InputStream>() {
  13.               public InputStream run() {
  14.                 return getResourceAsStreamFromEmbeddedJars(resourceName);
  15.               }
  16.             },
  17.             this.accessControlContext);
  18.         if (childInputStream != null) {
  19.           return childInputStream;
  20.         }
  21.       } catch (PrivilegedActionException ignored) {
  22.         // Passing through intentionally.
  23.       }
  24.     }
  25.   }
  26.   return null;
  27. }

代码示例来源：origin: h2oai/h2o-2

  1. public InputStream getResource2(String uri) {
  2.  if( fromJar() ) {
  3.   InputStream is = _systemLoader.getResourceAsStream("resources"+uri);
  4.   if (is==null) is = this.getClass().getClassLoader().getResourceAsStream("resources"+uri);
  5.   if (is==null) is = Thread.currentThread().getContextClassLoader().getResourceAsStream("resources"+uri);
  6.   return is;
  7.  } else {
  8.   try {
  9.    File resources  = new File("lib/resources");
  10.    if(!resources.exists()) {
  11.     // IDE mode assumes classes are in target/classes. Not using current path
  12.     // to allow running from other locations.
  13.     String h2oClasses = getClass().getProtectionDomain().getCodeSource().getLocation().getPath();
  14.     resources = new File(h2oClasses + "/../../lib/resources");
  15.    }
  16.    return new FileInputStream(new File(resources, uri));
  17.   } catch (FileNotFoundException e) {
  18.    Log.err("Trying system loader because : ", e);
  19.    return _systemLoader.getResourceAsStream("resources"+uri);
  20.   }
  21.  }
  22. }

代码示例来源：origin: apache/ignite

  1. /** {@inheritDoc} */
  2. @Override public InputStream getResourceAsStream(String name) {
  3.   doTimeout();
  4.   byte[] res = resourceMap.get(name);
  5.   return res == null ? super.getResourceAsStream(name) : new ByteArrayInputStream(res);
  6. }

代码示例来源：origin: openmrs/openmrs-core

  1. /**
  2.  * Searches all known module classloaders first, then parent classloaders
  3.  *
  4.  * @see java.lang.ClassLoader#getResourceAsStream(java.lang.String)
  5.  */
  6. @Override
  7. public InputStream getResourceAsStream(String file) {
  8.   for (ModuleClassLoader classLoader : ModuleFactory.getModuleClassLoaders()) {
  9.     InputStream result = classLoader.getResourceAsStream(file);
  10.     if (result != null) {
  11.       return result;
  12.     }
  13.   }
  14.   
  15.   return super.getResourceAsStream(file);
  16. }

代码示例来源：origin: mulesoft/mule

  1. @Test
  2. public void testClassloaderWithMulePluginUrls() throws IOException {
  3.  URL jarURL = getURL("lib" + File.separator + "test-jar-with-resources.jar" + SEPARATOR);
  4.  URLClassLoader urlClassLoader = new URLClassLoader(new URL[] {jarURL});
  5.  // looking for resource that's located in the jarURL (zip within zip scenario)
  6.  InputStream testResourceWithinZipInputStream = urlClassLoader.getResourceAsStream("test-resource-2.txt");
  7.  assertThat(testResourceWithinZipInputStream, notNullValue());
  8.  assertThat(IOUtils.toString(testResourceWithinZipInputStream), is("Just some text"));
  9. }

代码示例来源：origin: com.alibaba.jstorm/jstorm-core

  1. public InputStream getResourceAsStream(String name) {
  2.     InputStream is = super.getResourceAsStream(name);
  3.     if (is == null){
  4.       is = defaultClassLoader.getResourceAsStream(name);
  5.     }
  6.     return is;
  7.   }
  8. }

代码示例来源：origin: stackoverflow.com

  1. // the class to load
  2. final String classAsPath = className.replace('.', '/') + ".class";
  4. // the URL to the `app.jar` file (Windows and Unix/Linux/MacOSX below)
  5. final URL url = new URL( "file", null, "///C:/Users/diffusive/app.jar" );
  6. //final URL url = new URL( "file", null, "/Users/diffusive/app.jar" );
  8. // create the class loader with the JAR file
  9. final URLClassLoader urlClassLoader = new URLClassLoader( new URL[] { url } );
  11. // grab the resource, through, this time from the `URLClassLoader` object
  12. // rather than from the `ClassLoader` class
  13. final InputStream input = urlClassLoader.getResourceAsStream( classAsPath );

代码示例来源：origin: org.glassfish.main.common/common-util

  1. public InputStream getResourceAsStream(final String name) {
  2.   InputStream stream = super.getResourceAsStream(name);
  3.   /*
  4.    *Make sure not to wrap the stream if it already is a wrapper.
  5.    */
  6.   if (stream != null) {
  7.     if (! (stream instanceof SentinelInputStream)) {
  8.       stream = new SentinelInputStream(stream);
  9.     }
  10.   }
  11.   return stream;
  12. }

代码示例来源：origin: stackoverflow.com

  1. //ref to some jar
  2. File f = new File("/tmp/foo.jar");
  4. //create a new classloader for this jar
  5. URLClassLoader loader = URLClassLoader.newInstance(new URL[]{f.toURI().toURL()});
  7. //load resource with classloader
  8. InputStream inputStream = loader.getResourceAsStream("foo/bar/test.txt");
  10. //...do stuff with inputStream

代码示例来源：origin: org.eclipse.scout.rt/org.eclipse.scout.rt.ui.html.scriptprocessor

  1. @Override
  2. public InputStream getResourceAsStream(String name) {
  3.  String ext = getFileExtension(name);
  4.  if ("css".equals(ext) || "js".equals(ext) || "less".equals(ext)) {
  5.   return m_originalClassLoader.getResourceAsStream(name);
  6.  }
  7.  else {
  8.   return super.getResourceAsStream(name);
  9.  }
  10. }

代码示例来源：origin: org.glassfish.common/common-util

  1. public InputStream getResourceAsStream(final String name) {
  2.   InputStream stream = super.getResourceAsStream(name);
  3.   /*
  4.    *Make sure not to wrap the stream if it already is a wrapper.
  5.    */
  6.   if (stream != null) {
  7.     if (! (stream instanceof SentinelInputStream)) {
  8.       stream = new SentinelInputStream(stream);
  9.     }
  10.   }
  11.   return stream;
  12. }

代码示例来源：origin: stackoverflow.com

  1. URL[] url = { new URL("file:/home/mart/workspace6/test2/bin/") };
  2. URLClassLoader ucl = URLClassLoader.newInstance(url);
  4. InputStream is = ucl.getResourceAsStream("Outside.class");
  5. byte[] bytes = new byte[is.available()];
  6. is.read(bytes);
  7. Method m = ClassLoader.class.getDeclaredMethod("defineClass", new Class[] { String.class, byte[].class, int.class, int.class });
  8. m.setAccessible(true);
  9. Class<Base> outsideClass = (Class<Base>) m.invoke(Base.class.getClassLoader(), "Outside", bytes, 0, bytes.length);
  11. Base p = outsideClass.newInstance();
  12. System.out.println(p.getClass());
  13. p.run();

代码示例来源：origin: Spoutcraft/LegacyLauncher

  1. @Override
  2. public InputStream getResourceAsStream(String resource) {
  3.   URL result = getResource(resource);
  4.   if (result != null) {
  5.     try {
  6.       return result.openStream();
  7.     } catch (IOException e) {
  8.       //e.printStackTrace();
  9.     }
  10.   }
  11.   return super.getResourceAsStream(resource);
  12. }

代码示例来源：origin: org.ow2.bonita/bonita-server

  1. private InputStream getInternalInputstream(final String name) {
  2.  final byte[] classData = loadProcessResource(name);
  3.  if (classData != null) {
  4.   return new ByteArrayInputStream(classData);
  5.  }
  6.  return super.getResourceAsStream(name);
  7. }

代码示例来源：origin: net.sf.ingenias/codegen

  1. private static String readURLTemplate(String templateURL) throws
  2. MalformedURLException {
  3.   URLClassLoader urlLoader = new URLClassLoader(new URL[] {new URL(
  4.       templateURL)});
  5.   InputStream is = urlLoader.getResourceAsStream("templates/servlet.xml");
  6.   return readFile(is);
  7. }

代码示例来源：origin: io.fabric8/fabric8-maven-enricher-fabric8

  1. private InputStream loadPluginResource(String iconRef) {
  2.   InputStream answer = Thread.currentThread().getContextClassLoader().getResourceAsStream(iconRef);
  3.   if (answer == null) {
  4.     answer = MavenUtil.getTestClassLoader(getProject()).getResourceAsStream(iconRef);
  5.   }
  6.   if (answer == null) {
  7.     answer = this.getClass().getResourceAsStream(iconRef);
  8.   }
  9.   return answer;
  10. }

代码示例来源：origin: fabric8io/fabric8-maven-plugin

  1. private InputStream loadPluginResource(String iconRef) {
  2.   InputStream answer = Thread.currentThread().getContextClassLoader().getResourceAsStream(iconRef);
  3.   if (answer == null) {
  4.     answer = getContext().getProjectClassLoaders().getCompileClassLoader().getResourceAsStream(iconRef);
  5.   }
  6.   if (answer == null) {
  7.     answer = this.getClass().getResourceAsStream(iconRef);
  8.   }
  9.   return answer;
  10. }

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