一、登录:
UserDto
@Data
public class UserDto {
private String username;
private String password;
@Alias("nickname")
private String nickname;
private String avatarUrl;
}
UserController
//登录
@PostMapping("/login")
public Result login(@RequestBody UserDto userDto) {
String username = userDto.getUsername();
String password = userDto.getPassword();
if (StrUtil.isBlank(username) || StrUtil.isBlank(password)) {
return Result.error(Constants.CODE_400, "系统错误");
}
UserDto dto = userService.login(userDto);
return success(dto);
}
UserService
public interface UserService extends IService<User> {
UserDto login(UserDto userDto);
}
UserServiceImpl
@Service
public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements UserService {
@Resource
private UserMapper userMapper;
private static final Log LOG = Log.get();
@Override
public UserDto login(UserDto userDto) {
User one = getUserInfo(userDto);
if (one != null){
BeanUtil.copyProperties(one,userDto,true);
return userDto;
}else {
throw new ServiceException(Constants.CODE_600,"用户名或密码错误");
}
}
private User getUserInfo(UserDto userDto) {
QueryWrapper<User> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("username",userDto.getUsername());
queryWrapper.eq("password",userDto.getPassword());
User one;
try{
one = getOne(queryWrapper);
}catch (Exception e){
LOG.error(e);
throw new ServiceException(Constants.CODE_500,"系统错误");
}
return one;
}
}
Login.vue
<template>
<div class="wrapper">
<div style="margin: 200px auto; background-color: #fff; width: 350px; height: 300px; padding: 20px; border-radius: 10px">
<div style="margin: 20px 0; text-align: center; font-size: 24px"><b>登 录</b></div>
<el-form :model="user" :rules="rules" ref="userForm">
<el-form-item prop="username">
<el-input size="medium" style="margin: 10px 0" prefix-icon="el-icon-user" v-model="user.username"></el-input>
</el-form-item>
<el-form-item prop="password">
<el-input size="medium" style="margin: 10px 0" prefix-icon="el-icon-lock" show-password v-model="user.password"></el-input>
</el-form-item>
<el-form-item style="margin: 10px 0; text-align: right">
<el-button type="primary" size="small" autocomplete="off" @click="login">登录</el-button>
<el-button type="warning" size="small" autocomplete="off">注册</el-button>
</el-form-item>
</el-form>
</div>
</div>
</template>
<script>
export default {
name: "Login",
data() {
return {
user: {},
rules: {
username: [
{ required: true, message: '请输入用户名', trigger: 'blur' },
{ min: 3, max: 10, message: '长度在 3 到 5 个字符', trigger: 'blur' }
],
password: [
{ required: true, message: '请输入密码', trigger: 'blur' },
{ min: 1, max: 20, message: '长度在 1 到 20 个字符', trigger: 'blur' }
],
}
}
},
methods: {
login() {
this.$refs['userForm'].validate((valid) => {
if (valid) { // 表单校验合法
this.request.post("/user/login", this.user).then(res => {
if (res.code === '200'){
//存储用户信息到浏览器
localStorage.setItem("user",JSON.stringify(res.data))
this.$router.push("/")
this.$message.success("登录成功")
}else {
this.$message.error(res.msg)
}
})
}
});
}
}
</script>
<style>
.wrapper {
height: 100vh;
background-image: linear-gradient(to bottom right, #FC466B , #3F5EFB);
overflow: hidden;
}
</style>
router/index.js
{
path: '/login',
name: 'Login',
component: () => import('../views/Login.vue')
}
二、退出
Header.vue
<el-dropdown-item style="font-size: 14px; padding: 5px 0">
<span style="text-decoration: none" @click="logout">退出</span>
</el-dropdown-item>
data() {
return {
user: localStorage.getItem("user") ? JSON.parse(localStorage.getItem("user")) : {}
}
},
methods: {
logout() {
this.$router.push("/login")
localStorage.removeItem("user")
this.$message.success("退出成功")
}
}
三、注册
router/index.js
{
path: '/register',
name: 'Register',
component: () => import('../views/Register.vue')
},
Header.vue
<template>
<div class="wrapper">
<div style="margin: 100px auto; background-color: #fff; width: 350px; height: 400px; padding: 20px; border-radius: 10px">
<div style="margin: 20px 0; text-align: center; font-size: 24px"><b>注 册</b></div>
<el-form :model="user" :rules="rules" ref="userForm">
<el-form-item prop="username">
<el-input placeholder="请输入账号" size="medium" style="margin: 5px 0" prefix-icon="el-icon-user" v-model="user.username"></el-input>
</el-form-item>
<el-form-item prop="password">
<el-input placeholder="请输入密码" size="medium" style="margin: 5px 0" prefix-icon="el-icon-lock" show-password v-model="user.password"></el-input>
</el-form-item>
<el-form-item prop="confirmPassword">
<el-input placeholder="请确认密码" size="medium" style="margin: 5px 0" prefix-icon="el-icon-lock" show-password v-model="user.confirmPassword"></el-input>
</el-form-item>
<el-form-item style="margin: 5px 0; text-align: right">
<el-button type="primary" size="small" autocomplete="off" @click="register">注册</el-button>
<el-button type="warning" size="small" autocomplete="off" @click="$router.push('/login')">返回登录</el-button>
</el-form-item>
</el-form>
</div>
</div>
</template>
<script>
export default {
name: "Register",
data() {
return {
user: {},
rules: {
username: [
{ required: true, message: '请输入用户名', trigger: 'blur' },
{ min: 3, max: 10, message: '长度在 3 到 5 个字符', trigger: 'blur' }
],
password: [
{ required: true, message: '请输入密码', trigger: 'blur' },
{ min: 1, max: 20, message: '长度在 1 到 20 个字符', trigger: 'blur' }
],
confirmPassword: [
{ required: true, message: '请输入密码', trigger: 'blur' },
{ min: 1, max: 20, message: '长度在 1 到 20 个字符', trigger: 'blur' }
],
}
}
},
methods: {
register() {
this.$refs['userForm'].validate((valid) => {
if (valid) { // 表单校验合法
if (this.user.password !== this.user.confirmPassword) {
this.$message.error("两次输入的密码不一致")
return false
}
this.request.post("/user/register", this.user).then(res => {
if(res.code === '200') {
this.$message.success("注册成功")
this.$router.push("/login")
} else {
this.$message.error(res.msg)
}
})
}
});
}
}
}
</script>
<style>
.wrapper {
height: 100vh;
background-image: linear-gradient(to bottom right, #FC466B , #3F5EFB);
overflow: hidden;
}
</style>
Login.vue
methods: {
login() {
this.$refs['userForm'].validate((valid) => {
if (valid) { // 表单校验合法
this.request.post("/user/login", this.user).then(res => {
if (res.code === '200'){
//存储用户信息到浏览器
localStorage.setItem("user",JSON.stringify(res.data))
this.$router.push("/")
this.$message.success("登录成功")
}else {
this.$message.error(res.msg)
}
})
}
});
}
}
Register.vue
<template>
<div class="wrapper">
<div style="margin: 100px auto; background-color: #fff; width: 350px; height: 400px; padding: 20px; border-radius: 10px">
<div style="margin: 20px 0; text-align: center; font-size: 24px"><b>注 册</b></div>
<el-form :model="user" :rules="rules" ref="userForm">
<el-form-item prop="username">
<el-input placeholder="请输入账号" size="medium" style="margin: 5px 0" prefix-icon="el-icon-user" v-model="user.username"></el-input>
</el-form-item>
<el-form-item prop="password">
<el-input placeholder="请输入密码" size="medium" style="margin: 5px 0" prefix-icon="el-icon-lock" show-password v-model="user.password"></el-input>
</el-form-item>
<el-form-item prop="confirmPassword">
<el-input placeholder="请确认密码" size="medium" style="margin: 5px 0" prefix-icon="el-icon-lock" show-password v-model="user.confirmPassword"></el-input>
</el-form-item>
<el-form-item style="margin: 5px 0; text-align: right">
<el-button type="primary" size="small" autocomplete="off" @click="register">注册</el-button>
<el-button type="warning" size="small" autocomplete="off" @click="$router.push('/login')">返回登录</el-button>
</el-form-item>
</el-form>
</div>
</div>
</template>
<script>
export default {
name: "Register",
data() {
return {
user: {},
rules: {
username: [
{ required: true, message: '请输入用户名', trigger: 'blur' },
{ min: 3, max: 10, message: '长度在 3 到 5 个字符', trigger: 'blur' }
],
password: [
{ required: true, message: '请输入密码', trigger: 'blur' },
{ min: 1, max: 20, message: '长度在 1 到 20 个字符', trigger: 'blur' }
],
confirmPassword: [
{ required: true, message: '请输入密码', trigger: 'blur' },
{ min: 1, max: 20, message: '长度在 1 到 20 个字符', trigger: 'blur' }
],
}
}
},
methods: {
register() {
this.$refs['userForm'].validate((valid) => {
if (valid) { // 表单校验合法
if (this.user.password !== this.user.confirmPassword) {
this.$message.error("两次输入的密码不一致")
return false
}
this.request.post("/user/register", this.user).then(res => {
if(res.code === '200') {
this.$message.success("注册成功")
this.$router.push("/login")
} else {
this.$message.error(res.msg)
}
})
}
});
}
}
}
</script>
<style>
.wrapper {
height: 100vh;
background-image: linear-gradient(to bottom right, #FC466B , #3F5EFB);
overflow: hidden;
}
</style>
router/index.js
{
path: '/register',
name: 'Register',
component: () => import('../views/Register.vue')
}
User.vue
methods: {
load() {
this.request.get("/user/selectPage", {
params: {
pageNum: this.pageNum,
pageSize: this.pageSize,
username: this.username,
email: this.email,
address: this.address,
}
}).then(res => {
//注意data
this.tableData = res.data.records
this.total = res.data.total
})
},
save() {
this.request.post("/user/saveUser", this.form).then(res => {
if (res.data) {
this.$message.success("保存成功")
this.dialogFormVisible = false
this.load()
} else {
this.$message.error("保存失败")
}
})
},
del(id) {
this.request.delete("/user/" + id).then(res => {
if (res.data) {
this.$message.success("删除成功")
this.load()
} else {
this.$message.error("删除失败")
}
})
},
delBatch() {
let ids = this.multipleSelection.map(v => v.id) // [{}, {}, {}] => [1,2,3]
this.request.post("/user/del/batch", ids).then(res => {
if (res.data) {
this.$message.success("批量删除成功")
this.load()
} else {
this.$message.error("批量删除失败")
}
})
},
UserDto
import lombok.Data;
@Data
public class UserDto {
private String username;
private String password;
private String nickname;
private String avatarUrl;
}
Constants.java(常量类,定义Code)
public interface Constants {
String CODE_200 = "200"; //成功
String CODE_401 = "401"; // 权限不足
String CODE_400 = "400"; // 参数错误
String CODE_500 = "500"; // 系统错误
String CODE_600 = "600"; // 其他业务异常
}
Result
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
/**
* 接口统一返回包装类
*/
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Result {
private String code;
private String msg;
private Object data;
public static Result success() {
return new Result(Constants.CODE_200, "", null);
}
public static Result success(Object data) {
return new Result(Constants.CODE_200, "", data);
}
public static Result error(String code, String msg) {
return new Result(code, msg, null);
}
public static Result error() {
return new Result(Constants.CODE_500, "系统错误", null);
}
}
ServiceException.java(自定义业务异常)
import lombok.Getter;
/**
* 自定义异常
*/
@Getter
public class ServiceException extends RuntimeException {
private String code;
public ServiceException(String code, String msg) {
super(msg);
this.code = code;
}
}
GlobalExceptionHandler.java
import com.example.springboot.common.Result;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
@ControllerAdvice
public class GlobalExceptionHandler {
/**
* 如果抛出的的是ServiceException,则调用该方法
* @param se 业务异常
* @return Result
*/
@ExceptionHandler(ServiceException.class)
@ResponseBody
public Result handle(ServiceException se){
return Result.error(se.getCode(), se.getMessage());
}
}
头像,昵称功能实现:
Header.vue
<div style="display: inline-block">
<img :src="user.avatarUrl" referrerpolicy="no-referrer" alt=""
style="width: 30px; border-radius: 50%; position: relative; top: 10px; right: 5px">
<span>{
{ user.nickname }}</span><i class="el-icon-arrow-down" style="margin-left: 5px"></i>
</div>
UserDto
@Data
public class UserDto {
private String username;
private String password;
@Alias("nickname")
private String nickname;
private String avatarUrl;
}
四、个人信息页面显示
Person.vue
<template>
<el-card style="width: 500px;">
<el-form label-width="80px" size="small">
<el-form-item label="用户名">
<el-input v-model="form.username" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="昵称">
<el-input v-model="form.nickname" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="邮箱">
<el-input v-model="form.email" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="电话">
<el-input v-model="form.phone" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="地址">
<el-input v-model="form.address" autocomplete="off"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="save">确 定</el-button>
</el-form-item>
</el-form>
</el-card>
</template>
<script>
export default {
name: "Person",
data() {
return {
form: {},
user: localStorage.getItem("user") ? JSON.parse(localStorage.getItem("user")) : {}
}
},
created() {
this.request.get("user/findUserName/" + this.user.username).then(res => {
if (res.code === '200') {
this.form = res.data
}
})
},
methods: {
save() {
this.request.post("/user/saveUser", this.form).then(res => {
if (res.data) {
this.$message.success("保存成功")
} else {
this.$message.error("保存失败")
}
})
},
}
}
</script>
<style>
</style>
UserController
@GetMapping("/findUserName/{username}")
public Result findByName(@PathVariable String username){
QueryWrapper<User> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("username",username);
return Result.success(userService.getOne(queryWrapper));
}
用result封装方法
UserController
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.poi.excel.ExcelReader;
import cn.hutool.poi.excel.ExcelUtil;
import cn.hutool.poi.excel.ExcelWriter;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.example.springboot.common.Constants;
import com.example.springboot.common.Result;
import com.example.springboot.entity.User;
import com.example.springboot.entity.dto.UserDto;
import com.example.springboot.service.UserService;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.Resource;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.InputStream;
import java.net.URLEncoder;
import java.util.List;
import static com.example.springboot.common.Result.success;
@RestController
@RequestMapping("/user")
public class UserController {
@Resource
private UserService userService;
@GetMapping("/findUserName/{username}")
public Result findByName(@PathVariable String username){
QueryWrapper<User> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("username",username);
return Result.success(userService.getOne(queryWrapper));
}
//登录
@PostMapping("/login")
public Result login(@RequestBody UserDto userDto) {
String username = userDto.getUsername();
String password = userDto.getPassword();
if (StrUtil.isBlank(username) || StrUtil.isBlank(password)) {
return Result.error(Constants.CODE_400, "系统错误");
}
UserDto dto = userService.login(userDto);
return success(dto);
}
//注册
@PostMapping("/register")
public Result register(@RequestBody UserDto userDto) {
String username = userDto.getUsername();
String password = userDto.getPassword();
if (StrUtil.isBlank(username) || StrUtil.isBlank(password)) {
return Result.error(Constants.CODE_400, "系统错误");
}
return success(userService.register(userDto));
}
//导入
@PostMapping("/import")
public Result imp(MultipartFile file) throws Exception {
InputStream inputStream = file.getInputStream();
ExcelReader reader = ExcelUtil.getReader(inputStream);
//方式1(推荐) 通过javabean的方式读取Excel内的对象 但是要求表头必须是英文,跟javabean的属性要对应起来
/*List<User> list = reader.readAll(User.class);*/
//方式二:忽略表头的中文 直接读取表内容
List<List<Object>> list = reader.read(1);
List<User> users = CollUtil.newArrayList();
for (List<Object> row : list) {
User user = new User();
user.setUsername(row.get(0).toString());
user.setPassword(row.get(1).toString());
user.setNickname(row.get(2).toString());
user.setEmail(row.get(3).toString());
user.setPhone(row.get(4).toString());
user.setAddress(row.get(5).toString());
user.setAvatarUrl(row.get(6).toString());
users.add(user);
}
userService.saveBatch(users);
return success(true);
}
//导出
@GetMapping("/export")
public Result export(HttpServletResponse response) throws Exception {
//从数据库查询出所有数据
List<User> list = userService.list();
//通过工具类创建writer写出到磁盘路径
/*ExcelWriter writer = ExcelUtil.getWriter(filesUploadPath+"/用户信息.xlsx");*/
//在内存操作,写出到浏览器
ExcelWriter writer = ExcelUtil.getWriter(true);
//自定义标签别名
writer.addHeaderAlias("username", "用户名");
writer.addHeaderAlias("password", "密码");
writer.addHeaderAlias("nickname", "昵称");
writer.addHeaderAlias("email", "邮箱");
writer.addHeaderAlias("phone", "电话");
writer.addHeaderAlias("address", "地址");
writer.addHeaderAlias("createTime", "创建时间");
writer.addHeaderAlias("avatarUrl", "头像");
//一次性写出list内的对象到excel。使用默认样式,强制输出标题
writer.write(list, true);
//响应浏览器响应的格式
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8");
String fileName = URLEncoder.encode("用户信息", "UTF-8");
response.setHeader("Content-Disposition", "attachment;filename=" + fileName + ".xlsx");
ServletOutputStream out = response.getOutputStream();
writer.flush(out, true);
out.close();
writer.close();
return Result.success();
}
//修改或增加
@PostMapping("/saveUser")
public Result saveUser(@RequestBody User user) {
//新增或修改
return success(userService.saveOrUpdate(user));
}
@GetMapping("/findAll")
public Result findAll() {
return success(userService.list());
}
@DeleteMapping("/{id}")
public Result delete(@PathVariable("id") Integer id) {
return success(userService.removeById(id));
}
//批量删除
@PostMapping("/del/batch")
public Result deleteBatch(@RequestBody List<Integer> ids) {
return success(userService.removeBatchByIds(ids));
}
//分页查询
//接口路径 /user/selectPage?pageNum = 1 &pageSize = 10
//@RequestParam 接收
//limit第一个参数 = (pageNum - 1)*pageSize
//pageSize
/* @GetMapping("/selectPage")
public Map<String, Object> selectPage(@RequestParam String username, @RequestParam Integer pageSize, @RequestParam Integer pageNum) {
pageNum = (pageNum - 1) * pageSize;
username = "%" + username + "%";
List<User> data = userService.selectPage(pageNum, pageSize, username);
Integer total = userService.selectTotal(username);
Map<String, Object> res = new HashMap<>();
res.put("data", data);
res.put("total", total);
return res;
}*/
//分页查询 mybatis-plus方式
@GetMapping("/selectPage")
public Result selectPage(@RequestParam(defaultValue = "") String username,
@RequestParam Integer pageSize,
@RequestParam Integer pageNum,
@RequestParam(defaultValue = "") String email,
@RequestParam(defaultValue = "") String address) {
IPage<User> page = new Page<>(pageNum, pageSize);
QueryWrapper<User> queryWrapper = new QueryWrapper<>();
if (!"".equals(username)) {
queryWrapper.like("username", username);
}
if (!"".equals(email)) {
queryWrapper.like("email", email);
}
if (!"".equals(address)) {
queryWrapper.like("address", address);
}
queryWrapper.orderByDesc("id");
return success(userService.page(page, queryWrapper));
}
}