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[问题]Spring security 怎么注入bean 跪求大神

2015/4/27镜像同步8 回复

public class MySecurityMetadataSource implements FilterInvocationSecurityMetadataSource { private static Map<String, Collection<ConfigAttribute>> resourceMap = null; @Autowired private RoleDao roledao; // 1 //构造函数，因为服务器启动时会调用这个类，利用构造函数读取所有的url、角色 public MySecurityMetadataSource() { //初始化，读取数据库所有的url、角色 loadResourceDefine(); } private void loadResourceDefine() { List<Role> roles; try { roles = roledao.findAll(); System.out.println("进行到这儿了吗？0"); System.out.println(roles.get(0).getRolename()); //通过数据库中的信息设置，resouce和role for(Role role: roles){ String rolename = role.getRolename(); ConfigAttribute ca = new SecurityConfig(rolename); //查出对应的角色的资源 List<Permission> permissions = role.getPermission(); for(Permission p:permissions){ String url = p.getUrl(); // * 判断资源文件和权限的对应关系，如果已经存在相关的资源url，则要通过该url为key提取出权限集合，将权限增加到权限集合中。 if(resourceMap.containsKey(url)){ Collection<ConfigAttribute> value = resourceMap.get(url);//取出这个url的权限集合 value.add(ca); resourceMap.put(url, value); }else{ Collection<ConfigAttribute> atts = new ArrayList<ConfigAttribute>(); atts.add(ca); resourceMap.put(url, atts); } } } -------------------------------------------------------------------- ------------------------------------------------------------------- Caused by: java.lang.NullPointerException at edu.security.MySecurityMetadataSource.loadResourceDefine(MySecurityMetadataSource.java:173) at edu.security.MySecurityMetadataSource.<init>(MySecurityMetadataSource.java:84) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148) ... 60 more[/color]

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