《十次方》05、父工程及公共模块搭建

创建新工程

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创建maven项目（这里在创建过程中我并没有使用webapp这个骨架进行创建，因为他会通过网络下载很多其实我并不需要的jar包，需要使用的我直接在项目中配置即可。）

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公共工程（使用“-”下划线符合IDEA的开发规范，下一步的时候不要改名称）

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调整工作空间（大家根据自己的情况来即可）

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pom文件

<?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.tensquare</groupId>
    <artifactId>tensquare_parent</artifactId>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>tensquare_common</module>
        <module>tensquare_base</module>
    </modules>
    <!--两种情况打pom:-->
    <!--1.聚合工程的父工程-->
    <!--2.统一管理依赖的parent-->
    <!--需要进行部署到Tomcat打war包-->
    <!--其他的情况打jar包-->
    <packaging>pom</packaging>

    <name>tensquare_parent</name>
    <!--这个名字要不要都可以 -->
    <description>十次方项目</description>

    <!--我们的项目是基于springboot的所以需要继承‘spring-boot-starter-parent’-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.RELEASE</version>
        <relativePath/>
    </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-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <!--spring官网所提供的仓库 -->
    <repositories>
        <repository>
            <id>spring-snapshots</id>
            <name>SpringSnapshots</name>
            <url>https://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>
        <repository>
            <id>spring-milestones</id>
            <name>SpringMilestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <!--下载插件 -->
    <pluginRepositories>
        <pluginRepository>
            <id>spring-snapshots</id>
            <name>SpringSnapshots</name>
            <url>https://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </pluginRepository>
        <pluginRepository>
            <id>spring-milestones</id>
            <name>SpringMilestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

</project>

搭建公共工程

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定义返回结果实体类

//返回结果实体类
public class Result{

    private Boolean flag;//是否成功
    private Integer code;//返回码
    private String message;//返回信息
    private Object data;//返回数据

    public Result() {
    }

    public Result(Boolean flag, Integer code, String message) {
        this.flag = flag;
        this.code = code;
        this.message = message;
    }

    public Result(Boolean flag, Integer code, String message, Object data) {

        this.flag = flag;
        this.code = code;
        this.message = message;
        this.data = data;
    }

    public Boolean getFlag() {
        return flag;
    }

    public void setFlag(Boolean flag) {
        this.flag = flag;
    }

    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

定义返回分页结果实体类

//返回分页结果
public class PageResult<T> {

    private Long total;
    private List<T> rows;

    public PageResult() {
    }

    public PageResult(Long total, List<T> rows) {
        this.total = total;
        this.rows = rows;
    }

    public Long getTotal() {

        return total;
    }

    public void setTotal(Long total) {
        this.total = total;
    }

    public List<T> getRows() {
        return rows;
    }

    public void setRows(List<T> rows) {
        this.rows = rows;
    }

定义状态码实体类

//定义状态码实体类（Ctrl+R进行替换）
public class StatusCode {

    public static final int OK = 20000;//成功
    public static final int ERROR = 20001;//失败
    public static final int LOGINERROR = 20002;//用户名或密码错误
    public static final int ACCESSERROR = 20003;//权限不足
    public static final int REMOTEERROR = 20004;//远程调用失败
    public static final int REPERROR = 20005;//重复操作

}

十次方文集：https://www.jianshu.com/nb/32298744