ssm_sample框架

package com.ali77.service.impl; import java.util.List; import java.util.Map; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.ali77.mapper.UserMapper; import com.ali77.service.UserService; @Service public class UserServiceImpl implements UserService { @Autowired UserMapper userMapper; @Override public List<Map<String, Object>> listUsers() { List<Map<String, Object>> users = userMapper.listUsers(); for (Map<String, Object> user : users) { String password = user.get("USER_PASSWORD").toString(); //给密码“加密”，返回给页面 if(password.length() > 6) { //密码大于6位，除去首尾字符外，全部替换成* String star = ""; for (int i = 0; i < password.length() - 2; i++) { star += "*"; } password = password.charAt(0) + star + password.charAt(password.length() - 1); } else { //密码小于6位，全部替换成* password = password.replaceAll(".", "*"); } user.put("USER_PASSWORD", password); } return users; } }