SpringBoot实现登陆

1、依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.zn</groupId>
    <artifactId>springboot_invoicing</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot_invoicing</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </dependency>
        <!-- 核心依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- 可以实现热部署，在IDEA上实现热部署还需一些额外的配置，请查阅资料 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
            <scope>runtime</scope>
        </dependency>

        <!-- JDBC for mysql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.32</version>
        </dependency>

        <!-- mybatis -->
        <!--mybatis-->
        <!-- https://mvnrepository.com/artifact/org.mybatis.spring.boot/mybatis-spring-boot-starter -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.1</version>
        </dependency>

        <!--fastJson-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.12</version>
        </dependency>
        <!--druid-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.18</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.1</version>
        </dependency>
        <!--thymeleaf  新的模板引擎，比jsp要出色-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <!--jdbc-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

        <!-- 分页插件 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.3</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
        <!--xml配置，此是为了将来整合Hibernate或者mybatis 默认没有需要配置-->
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
    </build>

</project>

2、配置application.properties

　　　　

3、登陆页面 login.html

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>系统登录 - 小型进销存系统</title>
   <!-- <link rel="stylesheet" href="css/style.css"/>-->
    <style>
        #parent{
            width:500px;
            height:200px;
            margin-top:20%;
            margin-left:50%;
            transform:translate(-50%,-50%) ;
            background:#009688;
        }
        .password,.subBtn{
            margin-top: 2%;
            margin-left: 3%;
        }
        .loginHeader{
            padding-top: 1%;
        }
    </style>
</head>
<body class="login_bg">
<div id="parent">
    <section class="loginBox">
        <header class="loginHeader" style="text-align:center; ">
            <h1>小型进销存系统</h1>
        </header>
        <section class="loginCont">
            <form class="loginForm" action="/user/login" method="post" onsubmit="return check()" >
                <div class="inputbox"  style="text-align:center; ">
                    <label for="user">用户名：</label>
                    <input id="user" type="text" name="userName" placeholder="请输入用户名" required="required" />
                </div>
                <div class="password"  style="text-align:center; " >
                    <label for="mima">密码：</label>
                    <input id="mima" type="password" name="password" placeholder="请输入密码" required="required" />
                </div>
                <div class="subBtn"  style="text-align:center; ">
                    <input type="submit" value="登录" />
                    <input type="reset" value="重置"/>
                </div>
            </form>
        </section>
    </section>
</div>
</body>
</html>

4、实体类

　　　　

5、dao层UserDao

　　　　

6、UserDao.xml

　　　　

 7、UserService

　　　　

 8、UserServiceImpl

　　　　

 9、controller

　　　　

 10、SpringbootInvoicingApplication