spring security 过滤器的写法

gplxbxc 2011-04-06 02:38:04

/** 自定义的过滤器 */
public class JdbcFilterInvocationDefinitionSourceFactoryBean
extends JdbcDaoSupport implements FactoryBean {
private String resourceQuery;

boolean isSingleton() {
return true;
}

public Class getObjectType() {
return FilterInvocationDefinitionSource.class;
}

/** 使用urlMatcher和requestMap创建DefaultFilterInvocationDefinitionSource */
public Object getObject() {
return new DefaultFilterInvocationDefinitionSource(this
.getUrlMatcher(), this.buildRequestMap());
}

/** 获得所有资源信息 */
protected Map<String, String> findResources() {
ResourceMapping resourceMapping = new ResourceMapping(getDataSource(),
resourceQuery);

Map<String, String> resourceMap = new LinkedHashMap<String, String>();

for (Resource resource : (List<Resource>) resourceMapping.execute()) {
String url = resource.getUrl();
String role = resource.getRole();

if (resourceMap.containsKey(url)) {
String value = resourceMap.get(url);
resourceMap.put(url, value + "," + role);
} else {
resourceMap.put(url, role);
}
}

return resourceMap;
}

/** 使用获得的资源信息组装requestMap */
protected LinkedHashMap<RequestKey, ConfigAttributeDefinition> buildRequestMap() {
LinkedHashMap<RequestKey, ConfigAttributeDefinition> requestMap = null;
requestMap = new LinkedHashMap<RequestKey, ConfigAttributeDefinition>();

ConfigAttributeEditor editor = new ConfigAttributeEditor();

Map<String, String> resourceMap = this.findResources();

for (Map.Entry<String, String> entry : resourceMap.entrySet()) {
RequestKey key = new RequestKey(entry.getKey(), null);
editor.setAsText(entry.getValue());
requestMap.put(key,
(ConfigAttributeDefinition) editor.getValue());
}

return requestMap;
}

protected UrlMatcher getUrlMatcher() {
return new AntUrlPathMatcher();
}

public void setResourceQuery(String resourceQuery) {
this.resourceQuery = resourceQuery;
}

private class Resource {

/** 访问地址 */
private String url;

/** 角色 */
private String role;

/** 菜单 */
private String menu;

/** 路径 */
private String path;

public Resource(String url, String role ,String menu, String path) {
this.url = url;
this.role = role;
this.menu = menu;
this.path = path;
}

public String getUrl() {
return url;
}

public String getRole() {
return role;
}

public String getMenu(){
return menu;
}

public String getPath(){
return path;
}
}

/** 搜索数据库获得资源信息,实现数据库操作 */
private class ResourceMapping extends MappingSqlQuery {

protected ResourceMapping(DataSource dataSource,
String resourceQuery) {
super(dataSource, resourceQuery);
compile();
}

protected Object mapRow(ResultSet rs, int rownum)
throws SQLException {
String role = rs.getString(2);
String url = rs.getString(1);
String menu = rs.getString(3);
String path = rs.getString(4);
Resource resource = new Resource(url, role, menu, path);
return resource;
}
}
}

开始Resource只有url和role。我想做成现在拥有url, role, menu, path四个参数的过滤器，怎么修改啊？
或者大家有什么好的方法，在获取资源表的url时，把剩下的menu，path读取出来也可以？
我的目的就是读取资源表里的所有信息。

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