ajax cascading drop-down menus to achieve, and the database connection, to import data into the drop-down in the cascade realization

ajax\ajax二级菜单\Myajax\.classpath
....\............\......\.mymetadata
....\............\......\.project
....\............\......\src\classmate\DBOper.java
....\............\......\...\.........\DyListAction.java
....\............\......\...\.........\Itemser.java
....\............\......\...\.........\WriteLog.java
....\............\......\WebRoot\index.jsp
....\............\......\.......\META-INF\MANIFEST.MF
....\............\......\.......\WEB-INF\classes\classmate\DBOper.class
....\............\......\.......\.......\.......\.........\DyListAction.class
....\............\......\.......\.......\.......\.........\Itemser.class
....\............\......\.......\.......\.......\.........\WriteLog.class
....\............\......\.......\.......\web.xml
....\............\......\数据库创建脚本.sql
....\....实例\源文件\database\ajax.sql
....\........\......\webapp\ajax\1.1\index.jsp
....\........\......\......\....\...\read_faq.jsp
....\........\......\......\....\..2\postalcode.html
....\........\......\......\....\...\postalcode.jsp
....\........\......\......\....\..3\explain.html
....\........\......\......\....\...\tree.css
....\........\......\......\....\...\tree.html
....\........\......\......\....\...\tree.js
....\........\......\......\....\...\tree.jsp
....\........\......\......\....\..4\select_menu.html
....\........\......\......\....\...\select_menu.jsp
....\........\......\......\....\..5\query_commit.jsp
....\........\......\......\....\...\query_step.html
....\........\......\......\....\...\query_step.jsp
....\........\......\......\....\..6\word_tip.html
....\........\......\......\....\...\word_tip.jsp
....\........\......\......\....\2.1\bbs.css
....\........\......\......\....\...\bbs.js
....\........\......\......\....\...\bbs_post.jsp
....\........\......\......\....\...\index.jsp
....\........\......\......\....\..2\suggest.html
....\........\......\......\....\...\suggest.jsp
....\........\......\......\....\..3\upload.html
....\........\......\......\....\...\upload.js
....\........\......\......\....\...\upload.jsp
....\........\......\......\....\..4\index.jsp
....\........\......\......\....\...\live_grid.jsp
....\........\......\......\....\...\prototype.js
....\........\......\......\....\...\rico.js
....\........\......\......\....\..5\index.jsp
....\........\......\......\....\...\insert.gif
....\........\......\......\....\...\sort.js
....\........\......\......\....\...\sort_info.jsp
....\........\......\......\....\..6\page1.html
....\........\......\......\....\...\page2.jsp
....\........\......\......\....\...\tab_page.html
....\........\......\......\....\3.1\checker.js
....\........\......\......\....\...\checker.jsp
....\........\......\......\....\...\code.jsp
....\........\......\......\....\...\register.html
....\........\......\......\....\..2\cart.jsp
....\........\......\......\....\...\index.jsp
....\........\......\......\....\..3\quick_search.html
....\........\......\......\....\...\quick_search.jsp
....\........\......\......\....\..4\index.jsp
....\........\......\......\....\...\parameter.jsp
....\........\......\......\....\..5\mail_list.html
....\........\......\......\....\...\mail_list.jsp
....\........\......\......\....\..6\index.jsp
....\........\......\......\....\...\rating.gif
....\........\......\......\....\...\vote.jsp
....\........\......\......\....\4.1\calc.html
....\........\......\......\....\...\calc.jsp
....\........\......\......\....\..2\spell_check.html
....\........\......\......\....\...\spell_check.jsp
....\........\......\......\....\..3\word_check.jsp
....\........\......\......\....\...\word_create.jsp
....\........\......\......\....\...\word_guess.html
....\........\......\......\....\..4\online_dict.html
....\........\......\......\....\...\online_dict.jsp
....\........\......\......\....\..5\read_source.html
....\........\......\......\....\...\read_source.jsp
....\........\......\......\....\5.1\album.html
....\........\......\......\....\...\album.jsp
....\........\......\......\....\...\photos\pic001.jpg
....\........\......\......\

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