这里面包含了一百多个JAVA源文件

				This example modifies some of an object's attributes from the directory. 
				    try {
				        // Specify the changes to make
				        ModificationItem[] mods = new ModificationItem[3];
				    
				        // Replace mail attribute with new value
				        mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE,
				            new BasicAttribute("mail", "geisel@wizards.com"));
				    
				        // Add additional value to "telephonenumber"
				        mods[1] = new ModificationItem(DirContext.ADD_ATTRIBUTE,
				            new BasicAttribute("telephonenumber", "+1 555 555 5555"));
				    
				        // Remove jpegphoto
				        mods[2] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE,
				            new BasicAttribute("jpegphoto"));
				    
				        // Perform requested modifications on named object
				        ctx.modifyAttributes("cn=Ted Geisel, ou=People", mods);
				    } catch (NamingException e) {
				    }