shiro管理下MD5加密的使用

1. 正文：

package com.service.impl;import java.util.ArrayList;import java.util.List;import javax.annotation.Resource;import org.apache.commons.collections.CollectionUtils;import org.apache.commons.lang3.StringUtils;import org.apache.log4j.Logger;import org.apache.shiro.crypto.RandomNumberGenerator;import org.apache.shiro.crypto.SecureRandomNumberGenerator;import org.apache.shiro.crypto.hash.SimpleHash;import org.apache.shiro.util.ByteSource;import org.sPRingframework.beans.factory.annotation.Value;import org.springframework.stereotype.Service;import com.entity.AuthAdmin;import com.github.pagehelper.PageHelper;import com.github.pagehelper.PageInfo;import com.mapper.AuthAdminMapper;import com.service.IAuthAdminService;import com.service.IAuthRoleService;/** * 用户管理 * @author JiangYu */@Servicepublic class AuthAdminServiceImpl implements IAuthAdminService {		private RandomNumberGenerator randomNumberGenerator = new SecureRandomNumberGenerator();		@Resource	private AuthAdminMapper _authAdminMapper;	@Resource	private IAuthRoleService _authRoleService;	// 从配置properties文件中读取以下3项	@Value("${passWord.algorithmName}")    	private String algorithmName; // 加密方式：md5   	@Value("${password.hashIterations}")   	private int hashIterations;   // 次数：2   	@Value("${init.password}")   	private String initPwd;       // 初始化密码：admin		Logger _logger = Logger.getLogger(AuthAdminServiceImpl.class);		//新增用户	@Override	public void insertAuthAdmin(AuthAdmin authAdmin) throws Exception {		if ( StringUtils.isBlank(authAdmin.getAccount())				|| StringUtils.isBlank(authAdmin.getRoleIds())) {			_logger.error("---------添加用户数据出错-------------");			throw new Exception();		}		// 密码加盐		authAdmin.setSalt(randomNumberGenerator.nextBytes().toHex());        String newPassword = new SimpleHash(                algorithmName,                initPwd,                ByteSource.Util.bytes(authAdmin.getSalt()),                hashIterations).toHex();        authAdmin.setPassword(newPassword);		authAdmin.setRoleName(_authRoleService.selectRoleNameByIds(authAdmin.getRoleIds()));		authAdmin.setLocked("否");		_authAdminMapper.insertAuthAdmin(authAdmin);	}	/**	 * 修改密码	 */	@Override	public Integer updatePwd(AuthAdmin admin) throws Exception {				// 密码加盐		admin.setSalt(randomNumberGenerator.nextBytes().toHex());        String newPassword = new SimpleHash(                algorithmName,                admin.getPassword(),                ByteSource.Util.bytes(admin.getSalt()),                hashIterations).toHex();        admin.setPassword(newPassword);		Integer resullt  = _authAdminMapper.updateAuthAdmin(admin);		return resullt;	}		... ...
2. 配置文件中配置：
#MD5password.algorithmName=md5password.hashIterations=2#initpwdinit.password=admin
3. 说明：加密工作主要是 对管理员对象admin  的salt属性、password属性赋值就行了。
存入数据库的是这样的值;