本文整理了Java中java.net.URLConnection.setDefaultUseCaches()方法的一些代码示例，展示了URLConnection.setDefaultUseCaches()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。URLConnection.setDefaultUseCaches()方法的具体详情如下：
包路径：java.net.URLConnection
类名称：URLConnection
方法名：setDefaultUseCaches

URLConnection.setDefaultUseCaches介绍

[英]Sets the default value for the flag indicating whether this connection allows to use caches. Existing URLConnections are unaffected.
[中]设置标志的默认值，该标志指示此连接是否允许使用缓存。现有的URL连接不受影响。

代码示例

代码示例来源：origin: robovm/robovm

@Override
public void setDefaultUseCaches(boolean defaultusecaches) {
  jarFileURLConnection.setDefaultUseCaches(defaultusecaches);
}

代码示例来源：origin: openmrs/openmrs-core

/**
 * Creates the instance for the OpenmrsClassLoader
 */
public OpenmrsClassLoader(ClassLoader parent) {
  super(new URL[0], parent);
  
  if (parent instanceof OpenmrsClassLoader) {
    throw new IllegalArgumentException("Parent must not be OpenmrsClassLoader nor null");
  } else if (parent instanceof ModuleClassLoader) {
    throw new IllegalArgumentException("Parent must not be ModuleClassLoader");
  }
  
  OpenmrsClassLoaderHolder.INSTANCE = this;
  
  if (log.isDebugEnabled()) {
    log.debug("Creating new OpenmrsClassLoader instance with parent: {}", parent);
  }
  
  //disable caching so the jars aren't locked
  //if performance is effected, this can be disabled in favor of
  //copying all opened jars to a temp location
  //(ala org.apache.catalina.loader.WebappClassLoader antijarlocking)
  URLConnection urlConnection = new OpenmrsURLConnection();
  urlConnection.setDefaultUseCaches(false);
}

代码示例来源：origin: openmrs/openmrs-core

/**
 * Downloads the contents of a URL and copies them to a string (Borrowed from oreilly)
 *
 * @param url
 * @return InputStream of contents
 * @should return a valid input stream for old module urls
 */
public static InputStream getURLStream(URL url) {
  InputStream in = null;
  try {
    URLConnection uc = url.openConnection();
    uc.setDefaultUseCaches(false);
    uc.setUseCaches(false);
    uc.setRequestProperty("Cache-Control", "max-age=0,no-cache");
    uc.setRequestProperty("Pragma", "no-cache");
    
    log.debug("Logging an attempt to connect to: " + url);
    
    in = openConnectionCheckRedirects(uc);
  }
  catch (IOException io) {
    log.warn("io while reading: " + url, io);
  }
  
  return in;
}

代码示例来源：origin: org.glassfish.metro/webservices-tools

@Override
  protected void finalize() throws Throwable {
    //see http://java.net/jira/browse/JAX_WS-1087
    if (doReset) {
      c.setDefaultUseCaches(true);
    }
  }        
}

代码示例来源：origin: stackoverflow.com

public class URLConnectionNoCache extends URLConnection {

  protected URLConnectionNoCache(URL url) {
    super(url);
    setDefaultUseCaches(false);
  }

  public void connect() throws IOException {
  }
}

代码示例来源：origin: ch.qos.cal10n/cal10n-api

private InputStream openConnectionForUrl(URL url) throws IOException {
  URLConnection urlConnection = url.openConnection();
  urlConnection.setDefaultUseCaches(false);
  InputStream in = urlConnection.getInputStream();
  return in;
 }
}

代码示例来源：origin: samtools/htsjdk

private static URLConnection openConnection(final URL url) throws IOException{
  final URLConnection conn = url.openConnection();
  conn.setReadTimeout(3000);
  conn.setDefaultUseCaches(false);
  conn.setUseCaches(false);
  return conn;
}

代码示例来源：origin: org.utgenome.thirdparty/picard

private static URLConnection openConnection(final URL url) throws IOException{
  URLConnection conn = url.openConnection();
  conn.setReadTimeout(3000);
  conn.setDefaultUseCaches(false);
  conn.setUseCaches(false);
  return conn;
}

代码示例来源：origin: org.seqdoop/htsjdk

private static URLConnection openConnection(final URL url) throws IOException{
  URLConnection conn = url.openConnection();
  conn.setReadTimeout(3000);
  conn.setDefaultUseCaches(false);
  conn.setUseCaches(false);
  return conn;
}

代码示例来源：origin: com.github.samtools/htsjdk

private static URLConnection openConnection(final URL url) throws IOException{
  final URLConnection conn = url.openConnection();
  conn.setReadTimeout(3000);
  conn.setDefaultUseCaches(false);
  conn.setUseCaches(false);
  return conn;
}

代码示例来源：origin: org.apache.tuscany.sca/tuscany-extensibility

public InputStream run() throws IOException {
    URLConnection connection = url.openConnection();
    // TUSCANY-2539
    // Don't cache connections by default to stop Tuscany locking contribution jar files
    // done here as this is one of the first places we open a stream and the only way to
    // set the default is to set it on an instance of URLConnection
    connection.setDefaultUseCaches(false);
    connection.setUseCaches(false);
    return url.openStream();
  }
});

代码示例来源：origin: org.apache.tuscany.sca/tuscany-base-runtime

public InputStream run() throws IOException {
    URLConnection connection = url.openConnection();
    // TUSCANY-2539
    // Don't cache connections by default to stop Tuscany locking contribution jar files
    // done here as this is one of the first places we open a stream and the only way to
    // set the default is to set it on an instance of URLConnection
    connection.setDefaultUseCaches(false);
    connection.setUseCaches(false);
    return url.openStream();
  }
});

代码示例来源：origin: wala/WALA

public static Reader getStream(URL url) throws IOException {
  URLConnection conn = url.openConnection();
  conn.setDefaultUseCaches(false);
  conn.setUseCaches(false);
 
  return new InputStreamReader(conn.getInputStream());
 }
}

代码示例来源：origin: com.ibm.wala/com.ibm.wala.cast.js

public static Reader getStream(URL url) throws IOException {
  URLConnection conn = url.openConnection();
  conn.setDefaultUseCaches(false);
  conn.setUseCaches(false);
 
  return new InputStreamReader(conn.getInputStream());
 }
}

代码示例来源：origin: caskdata/cdap

/**
  * Utility method to set {@link URLConnection#setDefaultUseCaches(boolean)}.
  */
 public static void setDefaultUseCaches(boolean useCaches) throws IOException {
  LOG.info("Turning off default caching in URLConnection");
  final String currentDir = System.getProperty("user.dir");
  new File(currentDir).toURI().toURL().openConnection().setDefaultUseCaches(useCaches);
 }
}

代码示例来源：origin: co.cask.cdap/cdap-common

/**
  * Utility method to set {@link URLConnection#setDefaultUseCaches(boolean)}.
  */
 public static void setDefaultUseCaches(boolean useCaches) throws IOException {
  LOG.info("Turning off default caching in URLConnection");
  final String currentDir = System.getProperty("user.dir");
  new File(currentDir).toURI().toURL().openConnection().setDefaultUseCaches(useCaches);
 }
}

代码示例来源：origin: stackoverflow.com

URL url = new URL("jar:file://dummy.jar!/");  
URLConnection uConn = new URLConnection(url) {  
  @Override
  public void connect() throws IOException {          
   // NOOP     
  }  
};
uConn.setDefaultUseCaches(false);

代码示例来源：origin: com.github.samtools/htsjdk

public HTTPHelper(URL url) {
  this.url = url;
  proxy = null;
  try {
    URLConnection conn = openConnection();
    conn.setDefaultUseCaches(false);
  } catch (IOException e) {
    e.printStackTrace();
  }
}

代码示例来源：origin: org.utgenome.thirdparty/picard

public HTTPHelper(URL url) {
  this.url = url;
  proxy = null;
  try {
    URLConnection conn = openConnection();
    conn.setDefaultUseCaches(false);
  } catch (IOException e) {
    e.printStackTrace();
  }
}

代码示例来源：origin: mjiderhamn/classloader-leak-prevention

@Override
 public void doOutsideClassLoader(ClassLoaderLeakPreventor preventor) {
  // This probably does not affect classloaders, but prevents some problems with .jar files
  try {
   // URL needs to be well-formed, but does not need to exist
   new URL("jar:file://dummy.jar!/").openConnection().setDefaultUseCaches(false);
  }
  catch (Exception ex) {
   preventor.error(ex);
  }
  
 }
}