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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Apr 27 23:36:02 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class SecureClassLoader</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/SecureClassLoader.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../java/security/Provider.html"><B>PREV CLASS</B></A> <A HREF="../../java/security/SecureRandom.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="SecureClassLoader.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">java.security</FONT><BR>Class SecureClassLoader</H2><PRE><A HREF="../../java/lang/Object.html">java.lang.Object</A> | +--<A HREF="../../java/lang/ClassLoader.html">java.lang.ClassLoader</A> | +--<B>java.security.SecureClassLoader</B></PRE><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../java/net/URLClassLoader.html">URLClassLoader</A></DD></DL><HR><DL><DT>public class <B>SecureClassLoader</B><DT>extends <A HREF="../../java/lang/ClassLoader.html">ClassLoader</A></DL><P>This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.<P><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected </CODE></FONT></TD><TD><CODE><B><A HREF="../../java/security/SecureClassLoader.html#SecureClassLoader()">SecureClassLoader</A></B>()</CODE><BR> Creates a new SecureClassLoader using the default parent class loader for delegation.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected </CODE></FONT></TD><TD><CODE><B><A HREF="../../java/security/SecureClassLoader.html#SecureClassLoader(java.lang.ClassLoader)">SecureClassLoader</A></B>(<A HREF="../../java/lang/ClassLoader.html">ClassLoader</A> parent)</CODE><BR> Creates a new SecureClassLoader using the specified parent class loader for delegation.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../java/lang/Class.html">Class</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/security/SecureClassLoader.html#defineClass(java.lang.String, byte[], int, int, java.security.CodeSource)">defineClass</A></B>(<A HREF="../../java/lang/String.html">String</A> name, byte[] b, int off, int len, <A HREF="../../java/security/CodeSource.html">CodeSource</A> cs)</CODE><BR> Converts an array of bytes into an instance of class Class, with an optional CodeSource.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../java/security/PermissionCollection.html">PermissionCollection</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/security/SecureClassLoader.html#getPermissions(java.security.CodeSource)">getPermissions</A></B>(<A HREF="../../java/security/CodeSource.html">CodeSource</A> codesource)</CODE><BR> Returns the permissions for the given CodeSource object.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.ClassLoader"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/ClassLoader.html">ClassLoader</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../java/lang/ClassLoader.html#defineClass(byte[], int, int)">defineClass</A>, <A HREF="../../java/lang/ClassLoader.html#defineClass(java.lang.String, byte[], int, int)">defineClass</A>, <A HREF="../../java/lang/ClassLoader.html#defineClass(java.lang.String, byte[], int, int, java.security.ProtectionDomain)">defineClass</A>, <A HREF="../../java/lang/ClassLoader.html#definePackage(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.net.URL)">definePackage</A>, <A HREF="../../java/lang/ClassLoader.html#findClass(java.lang.String)">findClass</A>, <A HREF="../../java/lang/ClassLoader.html#findLibrary(java.lang.String)">findLibrary</A>, <A HREF="../../java/lang/ClassLoader.html#findLoadedClass(java.lang.String)">findLoadedClass</A>, <A HREF="../../java/lang/ClassLoader.html#findResource(java.lang.String)">findResource</A>, <A HREF="../../java/lang/ClassLoader.html#findResources(java.lang.String)">findResources</A>, <A HREF="../../java/lang/ClassLoader.html#findSystemClass(java.lang.String)">findSystemClass</A>, <A HREF="../../java/lang/ClassLoader.html#getPackage(java.lang.String)">getPackage</A>, <A HREF="../../java/lang/ClassLoader.html#getPackages()">getPackages</A>, <A HREF="../../java/lang/ClassLoader.html#getParent()">getParent</A>, <A HREF="../../java/lang/ClassLoader.html#getResource(java.lang.String)">getResource</A>, <A HREF="../../java/lang/ClassLoader.html#getResourceAsStream(java.lang.String)">getResourceAsStream</A>, <A HREF="../../java/lang/ClassLoader.html#getResources(java.lang.String)">getResources</A>, <A HREF="../../java/lang/ClassLoader.html#getSystemClassLoader()">getSystemClassLoader</A>, <A HREF="../../java/lang/ClassLoader.html#getSystemResource(java.lang.String)">getSystemResource</A>, <A HREF="../../java/lang/ClassLoader.html#getSystemResourceAsStream(java.lang.String)">getSystemResourceAsStream</A>, <A HREF="../../java/lang/ClassLoader.html#getSystemResources(java.lang.String)">getSystemResources</A>, <A HREF="../../java/lang/ClassLoader.html#loadClass(java.lang.String)">loadClass</A>, <A HREF="../../java/lang/ClassLoader.html#loadClass(java.lang.String, boolean)">loadClass</A>, <A HREF="../../java/lang/ClassLoader.html#resolveClass(java.lang.Class)">resolveClass</A>, <A HREF="../../java/lang/ClassLoader.html#setSigners(java.lang.Class, java.lang.Object[])">setSigners</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/Object.html">Object</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor">⌨️ 快捷键说明
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