shiro权限认证Realm的四大用法
一、SimpleAccountRealm
public class AuthenticationTest {
SimpleAccountRealm sar=new SimpleAccountRealm();
@Before
public void addUser() {
sar.addAccount("mark", "123456","admin","user");
}
@Test
public void testAuthentication() {
//1.构建seruritymanager环境
DefaultSecurityManager dsm=new DefaultSecurityManager();
dsm.setRealm(sar);
//2.主题提交认证请求
SecurityUtils.setSecurityManager(dsm);
Subject subject=SecurityUtils.getSubject();
UsernamePasswordToken token=new UsernamePasswordToken("mark","123456");
subject.login(token);
System.out.println("isAuthenticated:"+subject.isAuthenticated());
subject.checkRoles("admin","user");
}
二.IniRealm
public class IniRealmTest {
@Test
public void testIniRealm() {
IniRealm realm=new IniRealm("classpath:user.ini");
DefaultSecurityManager defaultSerurityManager=new DefaultSecurityManager();
defaultSerurityManager.setRealm(realm);
SecurityUtils.setSecurityManager(defaultSerurityManager);
Subject subject = SecurityUtils.getSubject();
UsernamePasswordToken upt=new UsernamePasswordToken("mark","123456");
subject.login(upt);
System.out.println("isAuthentication:"+subject.isAuthenticated());
subject.checkRole("admin");
subject.checkPermission("user:update");
}
}
三、JDBCRealm
public class JDBCRealmTest {
DruidDataSource dataSource=new DruidDataSource();
{
dataSource.setUrl("jdbc:mysql://localhost:3306/xxxx");
dataSource.setUsername("root");
dataSource.setPassword("root");
}
@Test
public void testJDBCRealm() {
JdbcRealm realm=new JdbcRealm();
realm.setDataSource(dataSource);
realm.setPermissionsLookupEnabled(true);
//如果不用自己的sql，数据库表名必须与shiro默认的查询语句中的一致，一般情况下都是使用自定义的sql，如下：
String sql="select password from test_user where user_name=?";
realm.setAuthenticationQuery(sql);
String roleSql="select role_name from test_user_roles where user_name=?";
realm.setUserRolesQuery(roleSql);
String permissionSql="select permission from test_roles_permissions where role_name=?";
realm.setPermissionsQuery(permissionSql);
DefaultSecurityManager dsm=new DefaultSecurityManager();
dsm.setRealm(realm);
SecurityUtils.setSecurityManager(dsm);
Subject subject = SecurityUtils.getSubject();
UsernamePasswordToken token=new UsernamePasswordToken("xm","123");
subject.login(token);
System.out.println("isAuthencation:"+subject.isAuthenticated());
subject.checkRole("admin");
subject.checkRoles("admin","user");
subject.checkPermission("user:delete");
}
}
四、自定义Realm
public class customRealmTest {
@Test
public void testCustomRealm() {
CustomRealm realm=new CustomRealm();
DefaultSecurityManager sdm=new DefaultSecurityManager();
sdm.setRealm(realm);
HashedCredentialsMatcher hcm=new HashedCredentialsMatcher();
hcm.setHashAlgorithmName("md5");
hcm.setHashIterations(1);
realm.setCredentialsMatcher(hcm);
SecurityUtils.setSecurityManager(sdm);
Subject subject = SecurityUtils.getSubject();
UsernamePasswordToken token=new UsernamePasswordToken("mark","123456");
subject.login(token);
System.out.println("isAuthencation:"+subject.isAuthenticated());
subject.checkRole("admin");
subject.checkRoles("admin","user");
subject.checkPermission("user:delete");
}
public class CustomRealm extends AuthorizingRealm {
Map<String, String> userMap=new HashMap<>();
{
//模拟数据库中查询出的数据
userMap.put("mark", "73bea81c6c06bacab41a995495239545");
super.setName("customReal");
}
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
String userName = (String) principals.getPrimaryPrincipal();
//通过用户名获取数据库或缓存中的角色
Set<String> roles=getRolesByUserName(userName);
Set<String> premissions=getpremissionsByUserName(userName);
SimpleAuthorizationInfo info=new SimpleAuthorizationInfo();
info.setStringPermissions(premissions);
info.setRoles(roles);
return info;
}
private Set<String> getpremissionsByUserName(String userName) {
Set<String> permission=new HashSet<>();
permission.add("user:delete");
return permission;
}
private Set<String> getRolesByUserName(String userName) {
Set<String> roles=new HashSet<>();
roles.add("admin");
roles.add("user");
return roles;
}
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
//1.通过主体传过来的信息获取用户名
String userName=(String) token.getPrincipal();
//2.通过用户名去数据库获取凭证
String password=getPassowrdByUserName(userName);
if(password==null) {
return null;
}
SimpleAuthenticationInfo info=new SimpleAuthenticationInfo("mark",password,"customReal");
//加盐--如果数据库中密码是加盐密文，此处应该设置盐的值
info.setCredentialsSalt(ByteSource.Util.bytes("mark"));
return info;
}
private String getPassowrdByUserName(String userName) {
//实际中去查数据库 这个方便演示
return userMap.get(userName);
}
public static void main(String[] args) {
System.out.println((int)(1+Math.random()*10));
// Md5Hash hsh=new Md5Hash("123456"); //md5加密
Md5Hash hsh=new Md5Hash("123456","mark"); //MD5加密并加盐 更安全
System.out.println(hsh);
}
相关推荐
杜鲁门 2020-11-05
luckyxl0 2020-08-16
Dullonjiang 2020-08-09
xclxcl 2020-08-03
zmzmmf 2020-08-03
MicroBoy 2020-08-02
ganjing 2020-08-02
likesyour 2020-08-01
zmzmmf 2020-07-09
MicroBoy 2020-07-05
zzhao 2020-06-26
子云 2020-06-18
visionzheng 2020-06-07
neweastsun 2020-06-04
ErixHao 2020-06-03
GDreams0 2020-06-01
ganjing 2020-05-29
zmzmmf 2020-05-28
nullcy 2020-05-26