类 CodebaseAwareObjectInputStream
- java.lang.Object
- java.io.InputStream
- java.io.ObjectInputStream
- org.springframework.core.ConfigurableObjectInputStream
- org.springframework.remoting.rmi.CodebaseAwareObjectInputStream
- 所有已实现的接口:
Closeable,DataInput,ObjectInput,ObjectStreamConstants,AutoCloseable
public class CodebaseAwareObjectInputStream extends ConfigurableObjectInputStream
Special ObjectInputStream subclass that falls back to a specified codebase to load classes from if not found locally. In contrast to standard RMI conventions for dynamic class download, it is the client that determines the codebase URL here, rather than the "java.rmi.server.codebase" system property on the server.Uses the JDK's RMIClassLoader to load classes from the specified codebase. The codebase can consist of multiple URLs, separated by spaces. Note that RMIClassLoader requires a SecurityManager to be set, like when using dynamic class download with standard RMI! (See the RMI documentation for details.)
Despite residing in the RMI package, this class is not used for RmiClientInterceptor, which uses the standard RMI infrastructure instead and thus is only able to rely on RMI's standard dynamic class download via "java.rmi.server.codebase". CodebaseAwareObjectInputStream is used by HttpInvokerClientInterceptor (see the "codebaseUrl" property there).
Thanks to Lionel Mestre for suggesting the option and providing a prototype!
- 从以下版本开始:
- 1.1.3
- 作者:
- Juergen Hoeller
- 另请参阅:
RMIClassLoader,RemoteInvocationSerializingExporter.createObjectInputStream(java.io.InputStream),HttpInvokerClientInterceptor.setCodebaseUrl(java.lang.String)
嵌套类概要
从类继承的嵌套类/接口 java.io.ObjectInputStream
ObjectInputStream.GetField
字段概要
从接口继承的字段 java.io.ObjectStreamConstants
baseWireHandle, PROTOCOL_VERSION_1, PROTOCOL_VERSION_2, SC_BLOCK_DATA, SC_ENUM, SC_EXTERNALIZABLE, SC_SERIALIZABLE, SC_WRITE_METHOD, SERIAL_FILTER_PERMISSION, STREAM_MAGIC, STREAM_VERSION, SUBCLASS_IMPLEMENTATION_PERMISSION, SUBSTITUTION_PERMISSION, TC_ARRAY, TC_BASE, TC_BLOCKDATA, TC_BLOCKDATALONG, TC_CLASS, TC_CLASSDESC, TC_ENDBLOCKDATA, TC_ENUM, TC_EXCEPTION, TC_LONGSTRING, TC_MAX, TC_NULL, TC_OBJECT, TC_PROXYCLASSDESC, TC_REFERENCE, TC_RESET, TC_STRING
构造器概要
构造器 构造器 说明 CodebaseAwareObjectInputStream(InputStream in, ClassLoader classLoader, boolean acceptProxyClasses)Create a new CodebaseAwareObjectInputStream for the given InputStream and codebase.CodebaseAwareObjectInputStream(InputStream in, ClassLoader classLoader, String codebaseUrl)Create a new CodebaseAwareObjectInputStream for the given InputStream and codebase.CodebaseAwareObjectInputStream(InputStream in, String codebaseUrl)Create a new CodebaseAwareObjectInputStream for the given InputStream and codebase.
方法概要
所有方法 实例方法 具体方法 修饰符和类型 方法 说明 protected ClassLoadergetFallbackClassLoader()Return the fallback ClassLoader to use when no ClassLoader was specified and ObjectInputStream's own default class loader failed.protected Class<?>resolveFallbackIfPossible(String className, ClassNotFoundException ex)Resolve the given class name against a fallback class loader.从类继承的方法 org.springframework.core.ConfigurableObjectInputStream
resolveClass, resolveProxyClass
从类继承的方法 java.io.ObjectInputStream
available, close, defaultReadObject, enableResolveObject, getObjectInputFilter, read, read, readBoolean, readByte, readChar, readClassDescriptor, readDouble, readFields, readFloat, readFully, readFully, readInt, readLine, readLong, readObject, readObjectOverride, readShort, readStreamHeader, readUnshared, readUnsignedByte, readUnsignedShort, readUTF, registerValidation, resolveObject, setObjectInputFilter, skipBytes
从类继承的方法 java.io.InputStream
mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, skip, transferTo
从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
从接口继承的方法 java.io.ObjectInput
read, skip
构造器详细资料
CodebaseAwareObjectInputStream
public CodebaseAwareObjectInputStream(InputStream in, String codebaseUrl) throws IOException
Create a new CodebaseAwareObjectInputStream for the given InputStream and codebase.- 参数:
in- the InputStream to read fromcodebaseUrl- the codebase URL to load classes from if not found locally (can consist of multiple URLs, separated by spaces)- 抛出:
IOException- 另请参阅:
ObjectInputStream(java.io.InputStream)
CodebaseAwareObjectInputStream
public CodebaseAwareObjectInputStream(InputStream in, ClassLoader classLoader, String codebaseUrl) throws IOException
Create a new CodebaseAwareObjectInputStream for the given InputStream and codebase.- 参数:
in- the InputStream to read fromclassLoader- the ClassLoader to use for loading local classes (may benullto indicate RMI's default ClassLoader)codebaseUrl- the codebase URL to load classes from if not found locally (can consist of multiple URLs, separated by spaces)- 抛出:
IOException- 另请参阅:
ObjectInputStream(java.io.InputStream)
CodebaseAwareObjectInputStream
public CodebaseAwareObjectInputStream(InputStream in, ClassLoader classLoader, boolean acceptProxyClasses) throws IOException
Create a new CodebaseAwareObjectInputStream for the given InputStream and codebase.- 参数:
in- the InputStream to read fromclassLoader- the ClassLoader to use for loading local classes (may benullto indicate RMI's default ClassLoader)acceptProxyClasses- whether to accept deserialization of proxy classes (may be deactivated as a security measure)- 抛出:
IOException- 另请参阅:
ObjectInputStream(java.io.InputStream)
方法详细资料
resolveFallbackIfPossible
protected Class<?> resolveFallbackIfPossible(String className, ClassNotFoundException ex) throws IOException, ClassNotFoundException
从类复制的说明:ConfigurableObjectInputStreamResolve the given class name against a fallback class loader.The default implementation simply rethrows the original exception, since there is no fallback available.
- 覆盖:
resolveFallbackIfPossible在类中ConfigurableObjectInputStream- 参数:
className- the class name to resolveex- the original exception thrown when attempting to load the class- 返回:
- the newly resolved class (never
null) - 抛出:
IOExceptionClassNotFoundException
getFallbackClassLoader
protected ClassLoader getFallbackClassLoader() throws IOException
从类复制的说明:ConfigurableObjectInputStreamReturn the fallback ClassLoader to use when no ClassLoader was specified and ObjectInputStream's own default class loader failed.The default implementation simply returns
null, indicating that no specific fallback is available.