最近在使用shiro缓存用户的身份信息的时候，报了simpleByteSource不能序列化，跟进源码一看，原来这个类没有实现序列化的接口，但是我在缓存身份信息的实现又要用到这个类，解决方法：重写一个类，模仿着SimpleByteSoure这个类，写个自己的类。并且实现序列化接口即可·。
package com.dzf.shiro; import org.apache.shiro.codec.Base64;
import org.apache.shiro.codec.CodecSupport;
import org.apache.shiro.codec.Hex;
import org.apache.shiro.util.ByteSource; import java.io.Serializable;
import java.util.Arrays; /**
* <p>
* 为了解决redis序列化的问题，SimpleByteSource没有实现序列化接口
* 在传入simpleAuthenticationInfo()的时候，缓存用户信息会出现序列化异常
* </p>
* @author dingzf
* @date 2018/3/7
* @time 21:54
*/
public class ShiroByteSource implements ByteSource, Serializable {
private static final long serialVersionUID = -6814382603612799610L;
private volatile byte[] bytes;
private String cachedHex;
private String cachedBase64; public ShiroByteSource() { } public ShiroByteSource(String string) {
this.bytes = CodecSupport.toBytes(string);
} public void setBytes(byte[] bytes) {
this.bytes = bytes;
} @Override
public byte[] getBytes() {
return this.bytes;
} @Override
public String toHex() {
if ( this.cachedHex == null ) {
this.cachedHex = Hex.encodeToString(getBytes());
}
return this.cachedHex;
} @Override
public String toBase64() {
if ( this.cachedBase64 == null ) {
this.cachedBase64 = Base64.encodeToString(getBytes());
}
return this.cachedBase64;
} @Override
public boolean isEmpty() {
return this.bytes == null || this.bytes.length == 0;
} @Override
public String toString() {
return toBase64();
} @Override
public int hashCode() {
if (this.bytes == null || this.bytes.length == 0) {
return 0;
}
return Arrays.hashCode(this.bytes);
} @Override
public boolean equals(Object o) {
if (o == this) {
return true;
}
if (o instanceof ByteSource) {
ByteSource bs = (ByteSource) o;
return Arrays.equals(getBytes(), bs.getBytes());
}
return false;
} public static ByteSource of(String string) {
return new ShiroByteSource(string);
}
}
在自己的实现的realm里面调用如下：
SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(user, user.getPassword(), new ShiroByteSource(user.getSalt()), getName());
以前的写法是：
SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(user, user.getPassword(), new SimpleByteSource(user.getSalt()), getName());
然后就可以解决问题了。