shiro学习笔记：springboot整合shiro，并使用redis缓存

public class RedisCache implements Cache {
    private String name ;

    public RedisCache(){

    }

    public RedisCache(String name){
        System.out.println("name="+name);
        this.name = name;
    }

    private RedisTemplate getRedisTemplate(){
        RedisTemplate redisTemplate = (RedisTemplate) ApplicationContextUtil.getBean("redisTemplate");
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        return redisTemplate;
    }

    @Override
    public V get(K k) throws CacheException {
        System.out.println("------------------get from "+k.toString());
        return (V) getRedisTemplate().opsForHash().get(name,k.toString());
    }

    @Override
    public V put(K k, V v) throws CacheException {
        System.out.println("------------------put "+ v +" with "+k.toString());
        getRedisTemplate().opsForHash().put(name,k.toString(),v);
        return null;
    }

    @Override
    public V remove(K k) throws CacheException {
        System.out.println("------------------delete "+k.toString());
        getRedisTemplate().opsForHash().delete(name,k.toString());
        return null;
    }

    @Override
    public void clear() throws CacheException {
        System.out.println("------------------clear");
        getRedisTemplate().opsForHash().delete(name);
    }

    @Override
    public int size() {
        return 0;
    }

    @Override
    public Set keys() {
        return getRedisTemplate().opsForHash().keys(this.name);
    }

    @Override
    public Collection values() {
        return getRedisTemplate().opsForHash().values(this.name);
    }
}

在配置类中修改realm的缓存管理器

@Bean("myRealm")
    public Realm getRealm(){
        MyRealm myRealm = new MyRealm();

        //设置hashed凭证匹配器
        HashedCredentialsMatcher credentialsMatcher = new HashedCredentialsMatcher();
        credentialsMatcher.setHashAlgorithmName("md5");//加密方式md5
        credentialsMatcher.setHashIterations(1024);//散列次数，1024

        myRealm.setCredentialsMatcher(credentialsMatcher);

        //开启缓存，设置缓存管理器
        myRealm.setCachingEnabled(true);
        myRealm.setAuthenticationCachingEnabled(true);
        myRealm.setAuthorizationCachingEnabled(true);
//        myRealm.setCacheManager(new EhCacheManager());
        myRealm.setCacheManager(new RedisCacheManager());

        return myRealm;
    }

出错原因：由于shiro中提供的simpleByteSource实现，没有实现序列化,所以在认证时出现错误信息

解决方法：自定义salt实现，实现序列化接口

有2种方式：

1）实现ByteSource接口和Serializable接口，要实现ByteSource的所有方法，比较麻烦，如下：

public class CustomSimpleByteSource implements ByteSource, Serializable {

    private static final long serialVersionUID = 1L;

    private  byte[] bytes;
    private String cachedHex;
    private String cachedbase64;

    public CustomSimpleByteSource(){

    }

    public CustomSimpleByteSource(byte[] bytes) {
        this.bytes = bytes;
    }

    public CustomSimpleByteSource(char[] chars) {
        this.bytes = CodecSupport.toBytes(chars);
    }

    public CustomSimpleByteSource(String string) {
        this.bytes = CodecSupport.toBytes(string);
    }

    public CustomSimpleByteSource(ByteSource source) {
        this.bytes = source.getBytes();
    }

    public CustomSimpleByteSource(File file) {
        this.bytes = (new com.test.redis.CustomSimpleByteSource.BytesHelper()).getBytes(file);
    }

    public CustomSimpleByteSource(InputStream stream) {
        this.bytes = (new com.test.redis.CustomSimpleByteSource.BytesHelper()).getBytes(stream);
    }

    public static boolean isCompatible(Object o) {
        return o instanceof byte[] || o instanceof char[] || o instanceof String || o instanceof ByteSource || o instanceof File || o instanceof InputStream;
    }

    public byte[] getBytes() {
        return this.bytes;
    }

    public boolean isEmpty() {
        return this.bytes == null || this.bytes.length == 0;
    }

    public String toHex() {
        if (this.cachedHex == null) {
            this.cachedHex = Hex.encodeToString(this.getBytes());
        }

        return this.cachedHex;
    }

    public String tobase64() {
        if (this.cachedbase64 == null) {
            this.cachedbase64 = base64.encodeToString(this.getBytes());
        }

        return this.cachedbase64;
    }

    public String toString() {
        return this.tobase64();
    }

    public int hashCode() {
        return this.bytes != null && this.bytes.length != 0 ? Arrays.hashCode(this.bytes) : 0;
    }

    public boolean equals(Object o) {
        if (o == this) {
            return true;
        } else if (o instanceof ByteSource) {
            ByteSource bs = (ByteSource)o;
            return Arrays.equals(this.getBytes(), bs.getBytes());
        } else {
            return false;
        }
    }

    private static final class BytesHelper extends CodecSupport {
        private BytesHelper() {
        }

        public byte[] getBytes(File file) {
            return this.toBytes(file);
        }

        public byte[] getBytes(InputStream stream) {
            return this.toBytes(stream);
        }
    }
}

2）自定义一个类，继承SimpleByteSource 和 实现Serializable接口

public class MyByteSource extends SimpleByteSource implements Serializable {

    private static final long serialVersionUID = 1L;

    public MyByteSource(String string) {
        super(string);
    }
}

在自定义Realm中，修改认证的实现方法

@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
    System.out.println("--------------------开始认证--------------------");
    String principal = (String) authenticationToken.getPrincipal();
    if(!StringUtils.isNullOrEmpty(principal)){
        UserService userServiceImpl = (UserService) ApplicationContextUtil.getBean("userServiceImpl");
        QueryWrapper wrapper = new QueryWrapper();
        wrapper.eq("username",principal);
        //查询用户
        User user = userServiceImpl.getOne(wrapper);
        //如果存在，返回
        if(user!=null){
//                SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(user.getUsername(),user.getPassword(),
//                        ByteSource.Util.bytes(user.getSalt()),this.getName());
//                SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(user.getUsername(),user.getPassword(),
//                        new CustomSimpleByteSource(user.getSalt()),this.getName());
            SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(user.getUsername(),user.getPassword(),
                    new MyByteSource(user.getSalt()),this.getName());
            return info;
        }
    }
    return null;
}

此时，再去登录，可以正常登录，也可以正常保存redis缓存

public class VerifyCodeUtils {
    //使用到Algerian字体，系统里没有的话需要安装字体，字体只显示大写，去掉了1,0,i,o几个容易混淆的字符
    public static final String VERIFY_CODES = "23456789ABCDEFGHJKLMNPQRSTUVWXYZ";
    private static Random random = new Random();


    
    public static String generateVerifyCode(int verifySize){
        return generateVerifyCode(verifySize, VERIFY_CODES);
    }
    
    public static String generateVerifyCode(int verifySize, String sources){
        if(sources == null || sources.length() == 0){
            sources = VERIFY_CODES;
        }
        int codesLen = sources.length();
        Random rand = new Random(System.currentTimeMillis());
        StringBuilder verifyCode = new StringBuilder(verifySize);
        for(int i = 0; i < verifySize; i++){
            verifyCode.append(sources.charAt(rand.nextInt(codesLen-1)));
        }
        return verifyCode.toString();
    }

    
    public static String outputVerifyImage(int w, int h, File outputFile, int verifySize) throws IOException {
        String verifyCode = generateVerifyCode(verifySize);
        outputImage(w, h, outputFile, verifyCode);
        return verifyCode;
    }

    
    public static String outputVerifyImage(int w, int h, OutputStream os, int verifySize) throws IOException{
        String verifyCode = generateVerifyCode(verifySize);
        outputImage(w, h, os, verifyCode);
        return verifyCode;
    }

    
    public static void outputImage(int w, int h, File outputFile, String code) throws IOException{
        if(outputFile == null){
            return;
        }
        File dir = outputFile.getParentFile();
        if(!dir.exists()){
            dir.mkdirs();
        }
        try{
            outputFile.createNewFile();
            FileOutputStream fos = new FileOutputStream(outputFile);
            outputImage(w, h, fos, code);
            fos.close();
        } catch(IOException e){
            throw e;
        }
    }

    
    public static void outputImage(int w, int h, OutputStream os, String code) throws IOException{
        int verifySize = code.length();
        BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
        Random rand = new Random();
        Graphics2D g2 = image.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
        Color[] colors = new Color[5];
        Color[] colorSpaces = new Color[] { Color.WHITE, Color.CYAN,
                Color.GRAY, Color.LIGHT_GRAY, Color.MAGENTA, Color.ORANGE,
                Color.PINK, Color.YELLOW };
        float[] fractions = new float[colors.length];
        for(int i = 0; i < colors.length; i++){
            colors[i] = colorSpaces[rand.nextInt(colorSpaces.length)];
            fractions[i] = rand.nextFloat();
        }
        Arrays.sort(fractions);

        g2.setColor(Color.GRAY);// 设置边框色
        g2.fillRect(0, 0, w, h);

        Color c = getRandColor(200, 250);
        g2.setColor(c);// 设置背景色
        g2.fillRect(0, 2, w, h-4);

        //绘制干扰线
        Random random = new Random();
        g2.setColor(getRandColor(160, 200));// 设置线条的颜色
        for (int i = 0; i < 20; i++) {
            int x = random.nextInt(w - 1);
            int y = random.nextInt(h - 1);
            int xl = random.nextInt(6) + 1;
            int yl = random.nextInt(12) + 1;
            g2.drawLine(x, y, x + xl + 40, y + yl + 20);
        }

        // 添加噪点
        float yawpRate = 0.05f;// 噪声率
        int area = (int) (yawpRate * w * h);
        for (int i = 0; i < area; i++) {
            int x = random.nextInt(w);
            int y = random.nextInt(h);
            int rgb = getRandomIntColor();
            image.setRGB(x, y, rgb);
        }

        shear(g2, w, h, c);// 使图片扭曲

        g2.setColor(getRandColor(100, 160));
        int fontSize = h-4;
        Font font = new Font("Algerian", Font.ITALIC, fontSize);
        g2.setFont(font);
        char[] chars = code.toCharArray();
        for(int i = 0; i < verifySize; i++){
            AffineTransform affine = new AffineTransform();
            affine.setToRotation(Math.PI / 4 * rand.nextDouble() * (rand.nextBoolean() ? 1 : -1), (w / verifySize) * i + fontSize/2, h/2);
            g2.setTransform(affine);
            g2.drawChars(chars, i, 1, ((w-10) / verifySize) * i + 5, h/2 + fontSize/2 - 10);
        }

        g2.dispose();
        ImageIO.write(image, "jpg", os);
    }

    private static Color getRandColor(int fc, int bc) {
        if (fc > 255)
            fc = 255;
        if (bc > 255)
            bc = 255;
        int r = fc + random.nextInt(bc - fc);
        int g = fc + random.nextInt(bc - fc);
        int b = fc + random.nextInt(bc - fc);
        return new Color(r, g, b);
    }

    private static int getRandomIntColor() {
        int[] rgb = getRandomRgb();
        int color = 0;
        for (int c : rgb) {
            color = color << 8;
            color = color | c;
        }
        return color;
    }

    private static int[] getRandomRgb() {
        int[] rgb = new int[3];
        for (int i = 0; i < 3; i++) {
            rgb[i] = random.nextInt(255);
        }
        return rgb;
    }

    private static void shear(Graphics g, int w1, int h1, Color color) {
        shearX(g, w1, h1, color);
        shearY(g, w1, h1, color);
    }

    private static void shearX(Graphics g, int w1, int h1, Color color) {

        int period = random.nextInt(2);

        boolean borderGap = true;
        int frames = 1;
        int phase = random.nextInt(2);

        for (int i = 0; i < h1; i++) {
            double d = (double) (period >> 1)
                    * Math.sin((double) i / (double) period
                    + (6.2831853071795862D * (double) phase)
                    / (double) frames);
            g.copyArea(0, i, w1, 1, (int) d, 0);
            if (borderGap) {
                g.setColor(color);
                g.drawLine((int) d, i, 0, i);
                g.drawLine((int) d + w1, i, w1, i);
            }
        }

    }

    private static void shearY(Graphics g, int w1, int h1, Color color) {

        int period = random.nextInt(40) + 10; // 50;

        boolean borderGap = true;
        int frames = 20;
        int phase = 7;
        for (int i = 0; i < w1; i++) {
            double d = (double) (period >> 1)
                    * Math.sin((double) i / (double) period
                    + (6.2831853071795862D * (double) phase)
                    / (double) frames);
            g.copyArea(i, 0, 1, h1, 0, (int) d);
            if (borderGap) {
                g.setColor(color);
                g.drawLine(i, (int) d, i, 0);
                g.drawLine(i, (int) d + h1, i, h1);
            }

        }

    }
    public static void main(String[] args) throws IOException {
        //获取验证码
        String s = generateVerifyCode(4);
        //将验证码放入图片中
        outputImage(260,60,new File("/Users/chenyannan/Desktop/安工资料/aa.jpg"),s);
        System.out.println(s);
    }
}

@RequestMapping("getImage")
public void getImage(HttpSession session, HttpServletResponse response) throws IOException {
    //生成验证码
    String code = VerifyCodeUtils.generateVerifyCode(4);
    //验证码放入session
    session.setAttribute("code",code);
    //验证码存入图片
    ServletOutputStream os = response.getOutputStream();
    response.setContentType("image/png");
    VerifyCodeUtils.outputImage(220,60,os,code);
}

map.put("/user/getImage","anon");//验证码

@RequestMapping("/login")
public String login(User user, String code, HttpSession session){
    UsernamePasswordToken token = new UsernamePasswordToken(user.getUsername(),user.getPassword());
    try{
        //比较验证码
        String codes = (String) session.getAttribute("code");
        if (codes.equalsIgnoreCase(code)){
            Subject subject = SecurityUtils.getSubject();
            subject.login(token);
        }
    }catch (UnknownAccountException e){
        //账号不存在
        System.out.println("账号不存在");
        return "register";
    }catch (IncorrectCredentialsException e){
        //密码不正确
        System.out.println("密码不正确");
        return "login";
    }
//        return "index";
    return "redirect:index.jsp";
}

jsp常用标签

    游客访问 

 
user 标签：用户已经通过认证记住我 登录后显示响应的内容

    欢迎[]登录 退出

 
authenticated标签：用户身份验证通过，即 Subjec.login 登录成功 不是记住我登录的

    用户[] 已身份验证通过

 
notAuthenticated标签：用户未进行身份验证，即没有调用Subject.login进行登录,包括"记住我"也属于未进行身份验证

    未身份验证(包括"记住我")

 
 
principal 标签：显示用户身份信息，默认调用
Subjec.getPrincipal()获取，即Primary Principal

 
hasRole标签：如果当前Subject有角色将显示body体内的内容

    用户[]拥有角色admin

 
hasAnyRoles标签：如果Subject有任意一个角色(或的关系)将显示body体里的内容

    用户[]拥有角色admin 或者 user

 
lacksRole:如果当前 Subjec没有角色将显示body体内的内容

    用户[]没有角色admin

 
hashPermission:如果当前Subject有权限将显示body体内容

    用户[] 拥有权限user:create

 
lacksPermission:如果当前Subject没有权限将显示body体内容

    用户[] 没有权限org:create