ADD file via upload

src/main/java/com/service/UserInfoService.java

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+package com.example.service;
+
+import com.example.dao.UserInfoDao;
+import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
+import com.example.entity.UserInfo;
+import com.example.exception.CustomException;
+import com.example.common.ResultCode;
+import com.example.vo.UserInfoVo;
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import cn.hutool.crypto.SecureUtil;
+
+import javax.annotation.Resource;
+import javax.servlet.http.HttpServletRequest;
+import java.util.Date;
+import java.util.List;
+
+@Service
+public class UserInfoService {
+
+    @Resource
+    private UserInfoDao userInfoDao;
+
+    public UserInfo add(UserInfo userInfo) {
+        // 唯一校验
+        int count = userInfoDao.checkRepeat("name", userInfo.getName(), null);
+        if (count > 0) {
+            throw new CustomException("1001", "用户名\"" + userInfo.getName() + "\"已存在");
+        }
+        if (StringUtils.isEmpty(userInfo.getPassword())) {
+            // 默认密码123456
+            userInfo.setPassword(SecureUtil.md5("123456"));
+        } else {
+            userInfo.setPassword(SecureUtil.md5(userInfo.getPassword()));
+        }
+        userInfoDao.insertSelective(userInfo);
+        return userInfo;
+    }
+
+    public void delete(Long id) {
+        userInfoDao.deleteByPrimaryKey(id);
+    }
+
+    public void update(UserInfo userInfo) {
+        userInfoDao.updateByPrimaryKeySelective(userInfo);
+    }
+
+    public UserInfo findById(Long id) {
+        return userInfoDao.selectByPrimaryKey(id);
+    }
+
+    public List<UserInfoVo> findAll() {
+        return userInfoDao.findByName("all");
+    }
+
+    public PageInfo<UserInfoVo> findPage(String name, Integer pageNum, Integer pageSize, HttpServletRequest request) {
+        PageHelper.startPage(pageNum, pageSize);
+        List<UserInfoVo> all = userInfoDao.findByName(name);
+        return PageInfo.of(all);
+    }
+
+    public UserInfoVo findByUserName(String name) {
+        return userInfoDao.findByUsername(name);
+    }
+
+    public UserInfo login(String username, String password) {
+        UserInfo userInfo = userInfoDao.findByUsername(username);
+        if (userInfo == null) {
+            throw new CustomException(ResultCode.USER_ACCOUNT_ERROR);
+        }
+        if (!SecureUtil.md5(password).equalsIgnoreCase(userInfo.getPassword())) {
+            throw new CustomException(ResultCode.USER_ACCOUNT_ERROR);
+        }
+        return userInfo;
+    }
+
+}