目录
1.前端
（1）登录和注册页面
HomeView.vue
<template>
<div class="login-wrap">
<el-form ref="form" :model="form">
<h1 class="title">登录</h1>
<el-form-item >
<el-input type="text" v-model="form.username" placeholder="用户账号" autocomplete="off"></el-input>
</el-form-item>
<el-form-item >
<el-input type="password" v-model="form.password" placeholder="用户密码" autocomplete="off"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="doLogin" style="width: 100%;">登陆</el-button>
</el-form-item>
<el-row style="text-align: center;margin-top: -10px;">
<el-link type="primary" @click="doRegister">注册账号</el-link> |
<el-link type="primary" @click="">忘记密码</el-link>
</el-row>
</el-form>
</div>
</template>
<script>
import axios from 'axios'
export default{
data(){
return{
form:{
username:'',
password:''
}
}
},
methods:{
doLogin(){
axios.post('http://localhost:8081/login',this.form).then(res=>{
if(res.status==200){
this.$message({
message: '登陆成功',
type: 'success'
});
this.$router.push('/person');
}else{
this.$message({
message: '登陆失败',
type: 'error'
});
}
})
},
doRegister(){
this.$router.push('/register');
}
}
}
</script>
<style>
.login-wrap {
box-sizing: border-box;
width: 100%;
height: 100%;
padding-top: 10%;
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);
/* background-color: #112346; */
background-repeat: no-repeat;
background-position: center right;
background-size: 100%;
}
.login-container {
border-radius: 10px;
margin: 0px auto;
width: 350px;
padding: 30px 35px 15px 35px;
background: #fff;
border: 1px solid #eaeaea;
text-align: left;
box-shadow: 0 0 20px 2px rgba(0, 0, 0, 0.1);
}
.title {
margin: 0px auto 40px auto;
text-align: center;
color: #505458;
}
</style>kground-image: url(data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiIHN0YW5kYWxvbmU9Im5vIj8+Cjxzdmcgd2lkdGg9IjEzNjFweCIgaGVpZ2h0PSI2MDlweCIgdmlld0JveD0iMCAwIDEzNjEgNjA5IiB2ZXJzaW9uPSIxLjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiPgogICAgPCEtLSBHZW5lcmF0b3I6IFNrZXRjaCA0Ni4yICg0NDQ5NikgLSBodHRwOi8vd3d3LmJvaGVtaWFuY29kaW5nLmNvbS9za2V0Y2ggLS0+CiAgICA8dGl0bGU+R3
RegisterView.vue
<template>
<div class="login-wrap">
<el-form ref="form" :model="form">
<h1 class="title">注册</h1>
<el-form-item >
<el-input type="text" v-model="form.username" placeholder="用户账号" autocomplete="off"></el-input>
</el-form-item>
<el-form-item >
<el-input type="password" v-model="form.password" placeholder="用户密码" autocomplete="off"></el-input>
</el-form-item>
</el-form>
<el-button type="primary" @click="register" style="width: 100%;">注册</el-button>
<el-button type="primary" @click="doLogin" style="width: 100%;">返回登录</el-button>
</div>
</template>
<script>
import axios from 'axios';
export default({
data() {
return {
form: {
username: '',
password: ''
}
}
},
methods: {
register() {
axios.post('http://localhost:8081/register', {
username: this.form.username,
password: this.form.password
}).then(res => {
console.log(res);
this.$message({
message: '注册成功',
type: 'success'
});
this.$router.push('/person');
}).catch(err => {
console.log(err);
this.$message({
message: '注册失败'+err.message,
type: 'error'
})
})
},
doLogin() {
this.$router.push('/');
}
}
})
</script>（2） main.js，作请求和响应拦截
import Vue from "vue";
import App from "./App.vue";
import router from "./router";
import store from "./store";
import 'element-ui/lib/theme-chalk/index.css';
import ElementUI from "element-ui";
import axios from "axios";
Vue.config.productionTip = false;
Vue.prototype.$axios = axios;
Vue.use(ElementUI);
//------------------请求拦截-------------------//
axios.interceptors.request.use(config => {
//例：若存在token则带token
const token = store.state.token;
if (token) {
config.headers.Authorization = token
}
return config;
}, err => {
console.log("请求拦截=>", err);
return err;
})
//------------------响应拦截-------------------//
//-------------对响应数据做点什么-------------//
axios.interceptors.response.use(res => {
console.log("响应拦截=>", res.data);
//例：后端数据处理错误，并返回错误原因；前端获取错误原因并展示
if (res.data.success == false) {
Message({
message: res.data.data.message + '，请重试！',
type: 'warning'
});
}
console.log("响应拦截=>", res);
return res ? res.data : res;
}, err => {
console.log(err);
//打印完整的错误信息
console.log("响应拦截错误完整信息=>",err.response)
//也可以在这里对不同的错误码做不同的展示处理
throw err;
})
new Vue({
router,
store,
render: (h) => h(App),
}).$mount("#app");此处注意添加Element-ui依赖、axios依赖
2.后端
（1）mapper.xml
<sql id="selectUser">
select
U.id,
U.username,
U.password
from user U
</sql>
<select id="selectByUsername" parameterType="com.huaweisoft.test.zhansongtao.zhansongtao4.service.entity.User" resultType="com.huaweisoft.test.zhansongtao.zhansongtao4.service.entity.User">
<include refid="selectUser"/>
<where>
<if test="username != null and username != ''"> and username = #{username}</if>
</where>
</select>
<select id="selectByUserNameAndPassword" parameterType="com.huaweisoft.test.zhansongtao.zhansongtao4.service.entity.User" resultType="com.huaweisoft.test.zhansongtao.zhansongtao4.service.entity.User">
<include refid="selectUser"/>
<where>
<if test="username != null and username != ''"> and username = #{username}</if>
<if test="password != null and password != ''"> and password = #{password}</if>
</where>
</select>
<insert id="insertUser" parameterType="com.huaweisoft.test.zhansongtao.zhansongtao4.service.entity.User">
insert into user
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="username != null and username != ''">username,</if>
<if test="password != null and password != ''">password,</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="username != null and username != ''">#{username},</if>
<if test="password != null and password != ''">#{password},</if>
</trim>
</insert>
</mapper>（2）mapper接口
@Mapper
public interface UserMapper extends tk.mybatis.mapper.common.Mapper<User>{
User selectByUsername(User user);
User selectByUserNameAndPassword(User user);
int insertUser(User user);
}
（3）Service接口
public interface LoginService {
boolean login(User user);
void register(String username, String password);
}
（4）Service实现类
@Service
@AllArgsConstructor
public class LoginServiceImpl implements LoginService {
private UserMapper userMapper;
@Override
public boolean login(User user) {
if(StringUtils.isBlank(user.getUsername()) || StringUtils.isBlank(user.getPassword())){
throw new ServiceException("用户名或密码不能为空");
}
User user1 = userMapper.selectByUserNameAndPassword(user);
if(user1 != null) {
return true;
}else {
return false;
}
}
@Override
public void register(String username, String password) {
if(StringUtils.isBlank(username) || StringUtils.isBlank(password)){
throw new ServiceException("用户名或密码不能为空");
}
if(!password.matches(".*\\d+.*")||!password.matches(".*[a-zA-Z]+.*")){
throw new ServiceException("密码必须包含大写字母、小写字母、数字");
}
//查询注册的用户名是否存在
User user1 = userMapper.selectByUsername(new User(username));
if(user1 != null){
throw new ServiceException("用户名已存在");
}
User user = new User();
user.setUsername(username);
user.setPassword(password);
userMapper.insertUser(user);
}
}（5）Controller控制器
@RestController
@AllArgsConstructor
public class LoginController {
private LoginService loginService;
@PostMapping ("/login")
public JSONResult login(@RequestBody User user) {
boolean flag = loginService.login(user);
if (flag) {
return JSONResult.ok("登录成功！");
} else {
return JSONResult.errorMsg("登录失败！");
}
}
@PostMapping("/register")
public JSONResult register(@RequestBody User user) {
loginService.register(user.getUsername(), user.getPassword());
return JSONResult.ok("注册成功！");
}
}
（6）实体类
@Data
@Table(name = "`user`")
@AllArgsConstructor
@NoArgsConstructor
public class User {
/**
* 主键
*/
@Id
@Column(name = "`id`")
private Integer id;
/**
* 用户名
*/
@Column(name = "`username`")
private String username;
/**
* 密码
*/
@Column(name = "`password`")
private String password;
public User(Integer id){
this.id = id;
}
public User(String username){
this.username = username;
}
}
3.效果
以我数据库中存储的：username：zhan password：123456 示例
登录成功时：
登录失败时：
注册：
测试：
页面可以跳转，说明注册添加账户成功