/**
* 从数据库中读取菜单配置信息
*
* @return
*/
private Map[] getMenuComponents() {
ArrayList list = new ArrayList();
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rest = null;
String sql = "select name,parent_name,title,location,description from menu_item order by id";
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost/myexamples?user=root&password=mywangya&useUnicode=true&characterEncoding=UTF-8");
pstmt = conn.prepareStatement(sql);
rest = pstmt.executeQuery();
while (rest.next()) {
int i = 1;
HashMap map = new HashMap();
map.put("name", rest.getString(i++));
map.put("parent_name", rest.getString(i++));
map.put("title", rest.getString(i++));
map.put("location", rest.getString(i++));
map.put("description", rest.getString(i++));
list.add(map);
}
} catch (SQLException ex) {
ex.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} finally {
try {
if (null!=rest) rest.close();
if (null!=pstmt) pstmt.close();
if (null!=conn) conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
return (Map[]) list.toArray(new HashMap[0]);
}
/**
* 构造菜单权限
*
* @param request
*/
private void buildMenuPermissions(HttpServletRequest request) {
PermissionsAdapter permession = new PermissionsAdapter() {
public boolean isAllowed(MenuComponent menu) {
// 名称等于StandaloneMenu的菜单不显示
return !"StandaloneMenu".equalsIgnoreCase(menu.getName());
}
};
request.setAttribute("examplesPermession", permession);
}
/**
* 构造菜单显示标题
*
* @param request
*/
private void buildMenuResourceBundle(HttpServletRequest request) {
MenuResourceBundle resourceBundle = new MenuResourceBundle();
request.setAttribute("examplesBundle", resourceBundle);
}
/**
* MenuResourceBundle树状菜单国际语言显示
*
* @author wenbin.zhang
*
*/
class MenuResourceBundle extends ListResourceBundle {
private ArrayList list = new ArrayList();
public MenuResourceBundle() {
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rest = null;
String sql = "select title,titleCN from menu_item order by id";
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost/myexamples?user=root&password=mywangya&useUnicode=true&characterEncoding=UTF-8");
pstmt = conn.prepareStatement(sql);
rest = pstmt.executeQuery();
while (rest.next()) {
int i = 1;
String[] message = new String[2];
message[0] = rest.getString(i++);
try {
message[1] = new String(rest.getString(i++).getBytes("latin1"), "gbk");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
if (message[0] != null && message[1] != null) {
list.add(message);
}
}
} catch (SQLException ex) {
ex.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} finally {
try {
if (null!=rest) rest.close();
if (null!=pstmt) pstmt.close();
if (null!=conn) conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
public Object[][] getContents() {
return (String[][]) list.toArray(new String[0][0]);
}
}
}
> 将struts-config.xml文件的<action-mappings />部分修改为：
<action-mappings>
<action path="/menuAction" type="cn.appex.menu.MenuAction" >
<forward name="success" path="/struts-menu/dynamic-menu.jsp" />
</action>
</action-mappings>