把我上一个mvc模式的改成了ssm，基于SSM框架的学生信息管理系统

其他 2021-03-08 16:14:24 阅读次数: 0

啊啊啊啊啊啊经过将近两天的SSM框架的搭建终于差不多了！！这三天真的收获太多了！超开心！！！太爽了！！！直接上代码！这个项目是对我上一个纯MVC模式没有任何框架的改进，功能都是一样的，只是实现方式不一样。
一、配置文件
1.pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.whj.SSMSTU</groupId>
    <artifactId>SSM_Stu</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>RJStuManage_SSM</module>
    </modules>
    <dependencies>
        <!--Junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!--数据库驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>

        <!--Servlet - JSP -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <!--Mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.2</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.1</version>
        </dependency>
        <!--Spring-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.3.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>4.3.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.15</version>
        </dependency>
    </dependencies>
    <!--maven资源过滤设置-->
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
    </build>
</project>

2.web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <!--DispatcherServlet-->
    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <!--一定要注意:这里加载的是总的配置文件，之前被这里坑了！-->
            <param-value>classpath:applicationContext.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>DispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--encodingFilter-->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>
            org.springframework.web.filter.CharacterEncodingFilter
        </filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 跨域请求 -->
    <filter>
        <filter-name>SimpleCORSFilter</filter-name>
        <filter-class>com.whj.controller.SimpleCORSFilter</filter-class>
        <init-param>
            <param-name>IsCross</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>SimpleCORSFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!--Session过期时间-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>
</web-app>

3.spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd
   http://www.springframework.org/schema/mvc
   https://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!-- 配置SpringMVC -->
    <!-- 1.开启SpringMVC注解驱动 -->
    <mvc:annotation-driven />
    <!-- 2.静态资源默认servlet配置-->
    <mvc:default-servlet-handler/>
    <!-- 3.配置jsp 显示ViewResolver视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
    <!-- 4.扫描web相关的bean -->
    <context:component-scan base-package="com.whj.controller" />

    <!--&lt;!&ndash;解决渲染前端乱码问题&ndash;&gt;-->
    <!--<mvc:annotation-driven >-->
        <!--<mvc:message-converters register-defaults="true">-->
            <!--<bean class="org.springframework.http.converter.StringHttpMessageConverter" >-->
                <!--<property name = "supportedMediaTypes">-->
                    <!--<list>-->
                        <!--<value>application/json;charset=utf-8</value>-->
                        <!--<value>text/html;charset=utf-8</value>-->
                        <!--&lt;!&ndash; application 可以在任意 form 表单里面 enctype 属性默认找到 &ndash;&gt;-->
                        <!--<value>application/x-www-form-urlencoded</value>-->
                    <!--</list>-->
                <!--</property>-->
            <!--</bean>-->
            <!--<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" ></bean>-->
        <!--</mvc:message-converters>-->
    <!--</mvc:annotation-driven>-->
</beans>

4.spring-dao.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.2.xsd">
    <!--md!!这个地方卡死了-->
    <context:component-scan base-package="com.whj.*" />
    <!-- 配置整合mybatis -->
    <!-- 1.关联数据库文件 -->
    <context:property-placeholder location="classpath:database.properties"/>
    <!-- 2.数据库连接池 -->
    <!--数据库连接池
        dbcp 半自动化操作 不能自动连接
        c3p0 自动化操作（自动的加载配置文件 并且设置到对象里面）
    -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!-- 配置连接池属性 -->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <!-- c3p0连接池的私有属性 -->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!-- 关闭连接后不自动commit -->
        <property name="autoCommitOnClose" value="false"/>
        <!-- 获取连接超时时间 -->
        <property name="checkoutTimeout" value="10000"/>
        <!-- 当获取连接失败重试次数 -->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>
    <!-- 3.配置SqlSessionFactory对象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <!-- 自动扫描mapping.xml文件 和mybatis-config里的冲突了-->
        <property name="mapperLocations" value="classpath:com/whj/dao/*.xml"></property>
    </bean>
    <!-- 4.配置扫描Dao接口包，动态实现Dao接口注入到spring容器中 -->
    <!--解释 ：https://www.cnblogs.com/jpfss/p/7799806.html-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 给出需要扫描Dao接口包 -->
        <property name="basePackage" value="com.whj.dao"/>
    </bean>
    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
</beans>

5.spring-service.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd">
    <!-- 扫描service相关的bean -->
    <context:component-scan base-package="com.whj.service" />
    <!--StuServiceImpl注入到IOC容器中-->
    <bean id="StuServiceImpl" class="com.whj.service.StuServiceImpl">
        <property name="stuMapper" ref="stuMapper"/>
    </bean>
    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource" />
    </bean>
</beans>

6.mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <typeAliases>
        <package name="com.whj.pojo"/>
    </typeAliases>
    <!--<mappers>-->
        <!--<mapper resource="com/whj/dao/StuMapper.xml"/>-->
    <!--</mappers>-->
</configuration>

7.database.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/demo?useSSL=true&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456

8.applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd">
    <import resource="spring-dao.xml"/>
    <import resource="spring-service.xml"/>
    <import resource="spring-mvc.xml"/>
        </beans>

二、代码
1.controller层
AddController.java

package com.whj.controller;

import com.whj.pojo.Stu;
import com.whj.service.StuService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Controller
@RequestMapping("/stu")
public class AddController {
    @Autowired
    @Qualifier("StuServiceImpl")
    private StuService stuService;
    @RequestMapping(value = "/add",produces = "html/plain;charset=utf-8" )
    @ResponseBody
    public void add(HttpServletRequest request, HttpServletResponse response){
//       1.获取从前端传来的数据
        String sname = request.getParameter("sname");
        int sno = Integer.parseInt(request.getParameter("sno"));
        int sage = Integer.parseInt(request.getParameter("sage"));
        String saddress = request.getParameter("saddress");
        String spwd = request.getParameter("spwd");
//        2.封装成stu对象
        Stu student=new Stu(sno,sname,sage,saddress,spwd);
        System.out.println("从前端传回来的student是："+student);
//        3.调用service方法
        stuService.add(student);
    }
}

delController.java

package com.whj.controller;

import com.whj.pojo.Stu;
import com.whj.service.StuService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Controller
@RequestMapping("/stu")
public class delController {
    @Autowired
    @Qualifier("StuServiceImpl")
    private StuService stuService;
    @RequestMapping(value = "/del",produces = "html/plain;charset=utf-8" )
    @ResponseBody
    public void delete(HttpServletRequest request, HttpServletResponse response){
        int sno = Integer.parseInt(request.getParameter("sno"));
        System.out.println("删除中从前端返回来的值："+sno);
        stuService.del(sno);
    }
}

SearchController.java

package com.whj.controller;

import com.alibaba.fastjson.JSON;
import com.whj.pojo.Stu;
import com.whj.service.StuService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.List;

@Controller
@RequestMapping("/stu")
public class SearchController {
    @Autowired
    @Qualifier("StuServiceImpl")
    private StuService stuService;
    @RequestMapping(value = "/StuDisplay",produces = "html/plain;charset=utf-8" )
//    @RequestMapping("/StuDisplay" )
    @ResponseBody
    public String list(Model model, HttpServletRequest request, HttpServletResponse response){
        response.setContentType("text/html");
        response.setCharacterEncoding("UTF-8");
        List<Stu> students = stuService.search();
        for (int i=0;i<students.size();i++){
            System.out.println(students.get(i));
        }
        String Students_json_str = JSON.toJSONString(students);
//        model.addAttribute("students",Students_json_str);
        return Students_json_str;
    }
}

UpdateController.java

package com.whj.controller;

import com.whj.pojo.Stu;
import com.whj.service.StuService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Controller
@RequestMapping("/stu")
public class UpdateController {
    @Autowired
    @Qualifier("StuServiceImpl")
    private StuService stuService;
    @RequestMapping(value = "/update",produces = "html/plain;charset=utf-8" )
    @ResponseBody
    public void update(HttpServletRequest request, HttpServletResponse response){
        String sname = request.getParameter("sname");
        int sno = Integer.parseInt(request.getParameter("sno"));
        int sage = Integer.parseInt(request.getParameter("sage"));
        String saddress = request.getParameter("saddress");
        String spwd = request.getParameter("spwd");
        Stu stu = new Stu(sno,sname, sage, saddress, spwd);
        System.out.println("更新中从前端返回来的值："+stu+"--"+sno);
        stuService.update(stu);
    }
}

解决跨域问题的类SimpleCORSFilter.java

package com.whj.controller;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class SimpleCORSFilter implements Filter {
    private boolean isCross = false;
    @Override
    public void destroy() {
        isCross = false;
    }
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        String isCrossStr = filterConfig.getInitParameter("IsCross");
        isCross = isCrossStr.equals("true") ? true : false;
        System.out.println(isCrossStr);
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        if (isCross) {
            HttpServletRequest httpServletRequest = (HttpServletRequest) request;
            HttpServletResponse httpServletResponse = (HttpServletResponse) response;
            System.out.println("拦截请求: " + httpServletRequest.getServletPath());
            httpServletResponse.setHeader("Access-Control-Allow-Origin", "*");
            httpServletResponse.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
            httpServletResponse.setHeader("Access-Control-Max-Age", "0");
            httpServletResponse.setHeader("Access-Control-Allow-Headers",
                    "Origin, No-Cache, X-Requested-With, If-Modified-Since, Pragma, Last-Modified, Cache-Control, Expires, Content-Type, X-E4M-With,userId,token");
            httpServletResponse.setHeader("Access-Control-Allow-Credentials", "true");
            httpServletResponse.setHeader("XDomainRequestAllowed", "1");
        }
        chain.doFilter(request, response);
    }

}

2.dao层
StuMapper.java

package com.whj.dao;

import com.whj.pojo.Stu;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository
public interface StuMapper {
    //学生信息展示
    public List<Stu> SearchStuInfo();
    //新增学生信息
    public int addStuInfo(Stu student);
    //删除学生信息
    public int delStuInfo(int sno);
    //更新学生信息
    public int updateStuInfo(Stu student);
}

StuMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.whj.dao.StuMapper">
    <!--学生信息展示-->
    <select id="SearchStuInfo" resultType="Stu">
        select * from stu
    </select>
    <!--新增学生信息-->
    <insert id="addStuInfo" parameterType="Stu">
        insert into stu(sno,sname,sage,saddress,spwd)
        values(#{sno},#{sname},#{sage},#{saddress},#{spwd})
    </insert>
    <!--更新学生信息-->
    <update id="updateStuInfo" parameterType="Stu">
        update stu set sname=#{sname},sage=#{sage},saddress=#{saddress},spwd=#{spwd}
        where sno=#{sno}
    </update>
    <!--删除学生信息-->
    <delete id="delStuInfo" parameterType="Stu">
        delete from stu where sno=#{sno}
    </delete>


</mapper>

3.pojo层
Stu.java

package com.whj.pojo;

public class Stu {
    private int sno;
    private String sname;
    private int sage;
    private String saddress;
    private String spwd;

    @Override
    public String toString() {
        return "Stu{" +
                "sno=" + sno +
                ", sname='" + sname + '\'' +
                ", sage=" + sage +
                ", saddress='" + saddress + '\'' +
                ", spwd='" + spwd + '\'' +
                '}';
    }

    public int getSno() {
        return sno;
    }

    public void setSno(int sno) {
        this.sno = sno;
    }

    public String getSname() {
        return sname;
    }

    public void setSname(String sname) {
        this.sname = sname;
    }

    public int getSage() {
        return sage;
    }

    public void setSage(int sage) {
        this.sage = sage;
    }

    public String getSaddress() {
        return saddress;
    }

    public void setSaddress(String saddress) {
        this.saddress = saddress;
    }

    public String getSpwd() {
        return spwd;
    }

    public void setSpwd(String spwd) {
        this.spwd = spwd;
    }

    public Stu(String sname, int sage, String saddress, String spwd) {

        this.sname = sname;
        this.sage = sage;
        this.saddress = saddress;
        this.spwd = spwd;
    }

    public Stu(int sno, String sname, int sage, String saddress, String spwd) {
        this.sno = sno;
        this.sname = sname;
        this.sage = sage;
        this.saddress = saddress;
        this.spwd = spwd;
    }

    public Stu() {
    }
}

4.Service层
StuService.java

package com.whj.service;

import com.whj.pojo.Stu;
import org.springframework.stereotype.Service;

import java.util.List;
@Service
public interface StuService {
    //查
    List<Stu> search();
    //增
    boolean add(Stu stu);
    //改
    boolean update(Stu student);
    //删
    boolean del(int sno);
}

StuServiceImpy

package com.whj.service;

import com.whj.dao.StuMapper;
import com.whj.pojo.Stu;

import java.util.List;

public class StuServiceImpl implements StuService{
    private StuMapper stuMapper;

    //查
    public List<Stu> search() {
        List<Stu> stus = stuMapper.SearchStuInfo();
        return stus;
    }

    //增
    public boolean add(Stu stu) {
        boolean flag=false;
        int i = stuMapper.addStuInfo(stu);
        if(i>0)
            flag=true;
        return flag;
    }

    //改
    public boolean update(Stu student) {
        boolean flag=false;
        int i = stuMapper.updateStuInfo(student);
        if(i>0)
            flag=true;
        return flag;
    }

    //删
    public boolean del(int sno) {
        boolean flag=false;
        int i = stuMapper.delStuInfo(sno);
        if(i>0)
            flag=true;
        return flag;
    }

    public void setStuMapper(StuMapper stuMapper) {
        this.stuMapper = stuMapper;
    }

    public StuMapper getStuMapper() {
        return stuMapper;
    }
}

三、总结与展望
我还是挺佩服自己的哈哈哈哈因为之前一直都没什么项目经验，而且从来没有自己单独的做过一个完整的前端，所以这次花了三天时间完成了mvc和ssm，很开心！！接下来我会去把ssm框架的一些配置文件和调用方式更底层的原理学会，因为现在知道的东西还是太皮毛了，不深入。然后再去学学vue，接着就是springboot、springcloud等等一下spring全家桶，总之就是加油呀！！！最后我想说一句狂神nb！！哈哈哈哈哈

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