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  • SpringBoot-06:SpringBoot增删改查一套完整的考试案例

    本此博客记录一套考试题,随后我把项目以及题目发到github上,简单的说一下springboot的开发

    本此考试题用Spring+SpringMVC+MyBatis+SpringBoot+MySQL+Druid+.yml配置文件+thymeleaf模板引擎

    我会把大量源码放上来,以及整合需要的注意点,大家可以一会去github上下载观看

    项目概览:

      

      

      

    一,jar包,pom.xml中的配置

    复制代码
    <?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>
    
        <artifactId>z05springbootmyself_exam</artifactId>
        <packaging>war</packaging>
    
        <name>z05springbootmyself_exam Maven Webapp</name>
        <!-- FIXME change it to the project's website -->
        <url>http://www.example.com</url>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.0.3.RELEASE</version>
            <relativePath/> <!-- lookup parent from repository -->
        </parent>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <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>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </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>
            <finalName>z05springbootmyself_exam</finalName>
            <!--maven插件-->
            <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>
    复制代码

      注意点:如果自己工程不是通过官网骨架创建,自己粘的话,小心粘了俩个parent节点,他不会报错,但是在后续就不会下载jar包了

    二,数据库脚本,我给一份

    复制代码
    DROP TABLE IF EXISTS `air_quality_index`;
    CREATE TABLE `air_quality_index` (
      `id` int(11) NOT NULL AUTO_INCREMENT,
      `district` varchar(255) NOT NULL,
      `monitorTime` datetime NOT NULL ON UPDATE CURRENT_TIMESTAMP,
      `pm10` int(255) NOT NULL,
      `pm25` int(255) NOT NULL,
      `monitoringStation` varchar(255) NOT NULL,
      `createDate` datetime NOT NULL ON UPDATE CURRENT_TIMESTAMP,
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8;
    
    -- ----------------------------
    -- Records of air_quality_index
    -- ----------------------------
    INSERT INTO `air_quality_index` VALUES ('1', '西城区', '2018-05-22 09:34:05', '243', '176', '灵境胡同监测站', '2018-05-22 10:57:21');
    INSERT INTO `air_quality_index` VALUES ('2', '东城区', '2018-05-22 09:34:05', '27', '33', '东四监测站', '2018-05-22 09:34:35');
    INSERT INTO `air_quality_index` VALUES ('3', '海淀区', '2018-05-22 09:34:05', '21', '30', '航天桥监测站', '2018-05-22 09:34:35');
    INSERT INTO `air_quality_index` VALUES ('4', '丰台区', '2018-05-22 09:34:05', '24333', '17', '七里庄监测站', '2018-05-22 10:55:20');
    INSERT INTO `air_quality_index` VALUES ('5', '西城区', '2018-05-22 09:58:03', '100', '1', '北京某地', '2018-06-22 16:41:51');
    INSERT INTO `air_quality_index` VALUES ('6', '东城区', '2018-05-22 09:58:03', '22', '22', '山东某地222333', '2018-05-22 10:54:36');
    INSERT INTO `air_quality_index` VALUES ('7', '西城区', '2018-05-22 09:58:03', '22', '22', '天津某地', '2018-05-22 10:57:41');
    INSERT INTO `air_quality_index` VALUES ('8', '西城区', '2018-05-22 09:58:03', '122', '232', '山东222', '2018-05-22 10:58:59');
    INSERT INTO `air_quality_index` VALUES ('9', '0', '2018-05-22 09:58:03', '22', '22', '北京某地', '2018-05-22 11:26:42');
    INSERT INTO `air_quality_index` VALUES ('10', '西城区', '2018-05-22 09:58:03', '22', '22', '天津某地', '2018-06-22 16:42:17');
    INSERT INTO `air_quality_index` VALUES ('11', '西城区', '2018-05-22 09:58:03', '1', '22', '灵境胡同监测站', '2018-06-22 16:42:50');
    复制代码

    三,application.yml的配置

    复制代码
    server:
    #端口号
      port: 8080
    spring:
    #模板引擎
        thymeleaf:
            prefix: classpath:/templates/
            mode: HTML5
            cache: false
    #阿里的druid
        datasource:
            name: test
            url: jdbc:mysql:///exam_air
            username: root
            password:
            type: com.alibaba.druid.pool.DruidDataSource
            driver-class-name: com.mysql.jdbc.Driver
            filters: stat
            maxActive: 20
            initialSize: 1
            maxWait: 60000
            minIdle: 1
            timeBetweenEvictionRunsMillis: 60000
            minEvictableIdleTimeMillis: 300000
            validationQuery: select 'x'
            testWhileIdle: true
            testOnBorrow: false
            testOnReturn: false
            poolPreparedStatements: true
            maxOpenPreparedStatements: 20
    mybatis:
      #映射的xml文件
      mapper-locations: classpath:mapping/*.xml
      #别名
      type-aliases-package: com.happy.entity
    复制代码

      注意点:他是一种新的模板,yml不可以使用制表符TAB,它通过空格表示层级关系,同样的节点反复出现会有问题

      我在里面配置了tomcat的端口,druid的数据源,以及mybatis的部分配置

    四,项目骨架预览

      

    五,thymeleaf模板的创建,他是以.html后缀名结尾的文件

      1.主页面:

    复制代码
    <!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8">
        <link rel="stylesheet" th:href="@{/css/bootstrap.min.css}">
        <!--引入js的时候切记 不需要加 springboot的默认文件名称-->
        <script type="text/javascript" th:src="@{/js/jquery-1.8.3.min.js}"></script>
        <script type="text/javascript" th:src="@{/js/jquery.pagination.js}"></script>
        <script type="text/javascript" th:src="@{/js/bootstrap-modal.js}"></script>
        <script type="text/javascript">
               window.onload=function () {
                   $("tr:odd").css("background","pink");
               }
    
        </script>
        <title>Title</title>
        <style type="text/css">
            table{
                border-collapse: collapse;
            }
        </style>
    
    </head>
    <body>
    <table  width="70%" border="1" align="center" id="list">
         <caption><h1 style="height: 50px;line-height5:0px;border: 1px">空气质量检测信息库</h1>
           按区域查询 <select name="district" id="ourSelect">
                 <option value="0">不限</option>
                 <option value="西城区">西城区</option>
                 <option value="东城区">东城区</option>
                 <option value="海淀区">海淀区</option>
                 <option value="丰台区">丰台区</option>
             </select>
             <input type="button" onclick="myselect()" value="查找"/>
             <a href="/goAddPage">添加空气质量信息</a>
         </caption>
        <thead>
        <tr class="t_head">
            <th>序号</th>
            <th>区域</th>
            <th>检测时间</th>
            <th>PM10数据</th>
            <th>PM2.5数据局</th>
            <th>监测站</th>
        </tr>
        </thead>
        <tbody id="list-content">
        </tbody>
    </table>
    <div  class="pagination" id="pagination"></div>
    <div  id="isOK"></div>
    <script type="text/javascript">
       $(function () {
           $("#update").hide();
       })
        load();  //默认初始化
        /*点击查询的触发事件*/
       function  load() {
           $.ajax({
               url: "/findAll",
               type: "post",
               success: function (data) {
                   //清空数据
                   $("#list-content").html('');
                   //追加数据
                   $.each(data, function (i, dom) {
                       //一个dom就是一个新闻对象
                       $("#list-content").append("<tr><td>"+ dom.id + "</td><td><a onclick='update("+dom.id+")'>"+dom.district+"</a>" + "</td><td>" + dom.monitorTime + "</td><td>" + dom.pm10 + "</td><td >" + dom.pm25 + "</td><td>"+
                           dom.monitoringStation+"</td></tr>");
                   });
                   $("tr:odd").css("background","pink");
               }
           });
       };
       
       function myselect() {
               $.ajax({
                   url: "/selectByCondition",
                   type: "post",
                   data:{"district":$("#ourSelect").val()},
                   success: function (data) {
                       //清空数据
                       $("#list-content").html('');
                       //追加数据
                       $.each(data, function (i, dom) {
                           //一个dom就是一个新闻对象
                           $("#list-content").append("<tr><td>"+ dom.id + "</td><td><a onclick='update("+dom.id+")'>"+dom.district+"</a>" + "</td><td>" + dom.monitorTime + "</td><td>" + dom.pm10 + "</td><td >" + dom.pm25 + "</td><td>"+
                               dom.monitoringStation+"</td></tr>");
                       });
                       $("tr:odd").css("background","pink");
                   }
               });
       };
    
    
    
       
    
       function update(id) {
           $("#update").show();
           $("#list").hide();
           $.ajax({
               url:'/goUpdatePage',
               type:"post",
               data:{"id":id},
               success:function(data){
                   $("[name=id]").val(data.id);
                   $("[name=district]").val(data.district);
                   $("[name=monitorTime]").val(data.monitorTime);
                   $("[name=pm10]").val(data.pm10);
                   $("[name=pm25]").val(data.pm25);
                   $("[name=monitoringStation]").val(data.monitoringStation);
               }
           });
    
       }
    
    
    </script>
    <center>
    <div id="update">
        <h2>空气质量信息维护页面</h2>
        <form method="post" action="/updateAir">
            <input type="hidden" name="id"/>
            <p>监测区域: <select name="district">
    
                <option value="0">不限</option>
                <option value="西城区">西城区</option>
                <option value="东城区">东城区</option>
                <option value="海淀区">海淀区</option>
                <option value="丰台区">丰台区</option>
            </select></p>
            <p>监测日期: <input type="text" name="monitorTime" /></p>
            <p>PM10值: <input type="text" name="pm10" /></p>
            <p>PM2.5值: <input type="text" name="pm25" /></p>
            <p>监测站: <input type="text"  name="monitoringStation"/></p>
            <input type="submit" value="更新"/>
            <input type="button" onclick="javascript:$('#list').show();$('#update').hide()" value="返回"/>
        </form>
    
    </div>
    </center>
    </body>
    </html>
    复制代码

     

      2.添加页面:

    复制代码
    <!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <script type="text/javascript" th:src="@{/js/jquery-1.8.3.min.js}"></script>
        <style type="text/css">
            #box{
                30%;
                margin: 0px auto;
            }
        </style>
        <script type="text/javascript">
            function checkInfo() {
                var district=$("[name=district]").val();
                var monitorTime=$("[name=monitorTime]").val();
                var pm10temp=$("[name=pm10]").val();
                var pm10=parseInt(pm10temp);
                var pm25temp=$("[name=pm25]").val();
                var pm25=parseInt(pm25temp);
                var monitoringStation=$("[name=monitoringStation]").val();
                if(monitorTime==""){
                    alert("检测时间不能为空");
                    return false;
                }
                if(pm10temp==""){
                    alert("pm10的值不能为空");
                    return false;
                }
                var reg=/^d+$/;
                if(!reg.test(pm10)){
                    alert('pm10只能为正整数');
                    return false;
                }
    
                if(pm25temp==""){
                    alert("pm25不能为空");
                    return false;
                }
                if(monitoringStation==""){
                    alert("监测站不能为空");
                    return false;
                }
                if(district=="不限"){
                    alert("监测区域不能选择不限");
                    return false;
                }
                return true;
            }
    
            $(function () {
                $("#form1").submit(function () {
                    return checkInfo();
                });
            });
        </script>
    </head>
    <body>
        <div id="box">
              <h2>添加空气质量信息</h2>
            <form id="form1" method="post" action="/addAir">
                <p>监测区域: <select name="district">
                    <option value="不限">不限</option>
                    <option value="西城区">西城区</option>
                    <option value="东城区">东城区</option>
                    <option value="海淀区">海淀区</option>
                    <option value="丰台区">丰台区</option>
                </select></p>
                <p>监测日期: <input type="text"name="monitorTime"/></p>
                <p>PM10值: <input type="text"name="pm10"/></p>
                <p>PM2.5值: <input type="text"name="pm25"/></p>
                <p>监测站: <input type="text"name="monitoringStation"/></p>
                <input type="submit" value="提交"/>
            </form>
        </div>
    
    
    
    <script type="text/javascript">
    
    </script>
    </body>
    </html>
    复制代码

      3.修改页面:

      注意点:他是一种新的模板,与jsp写法有不同,展示数据的方式,引用js,css都不太一样,也不同与EL,JSTL,需要摸索

      它的核心th

    <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">

    六,实体类

      注意点:日期类型处理格式

        @DateTimeFormat(pattern = "yyyy-MM-dd hh:mm:ss")
        @JsonSerialize(using = JsonDateSerializer.class)
        /*处理日期格式*/
        private Date monitorTime;

    七,工具类---就是处理日期格式的那个工具类

    八,Dao层

      1.接口:

      注意:他是一个普通的接口,没有注解是因为我在别处配置了一道,在yml有配置,在启动的那个main方法上面也有一道配置

      2.dao层的xml

      注意:命名空间,别名

      还有那个智能标签if test里面的写法

        直接传的String类型他会报错,说没有getString的方法,所以用map往里传参数

        假如test='address!=0',他会报错,说不可以转换为数字,故写为test='address!="0"'即可

    九,service层:

      1.接口:

      2.实现类:

      注意点:和普通的SSM注解开发没有什么太大的区别,值得注意的是事务的运用,需要在main那边开启一道配置

    十,controller层:

      普普通通,做过SSM的发现,没什么不同

    十一,SpringBoot核心启动类的配置

    复制代码
    package cn.happy;
    
    import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.transaction.annotation.EnableTransactionManagement;
    
    @SpringBootApplication
    //扫描mapper映射
    @MapperScan("cn.happy.*")
    /*开启事务*/
    @EnableTransactionManagement
    public class ExamApplication {
        public static void main(String[] args) {
            SpringApplication.run(ExamApplication.class, args);
        }
    }
    复制代码

      注意点:开启事务和mybatis的扫描

    十二,可以启动项目和调试了

    注意:

    我没仔细讲js,css,logback,logback就普通配置,无关紧要,css,js放在static下面即可,引入方式可以参考案例,我引用了一个bootstrap的js,这无关紧要,不影响,只需要jquery即可

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  • 原文地址:https://www.cnblogs.com/yelanggu/p/10314985.html
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