基本 Java Bean

<?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.ck.test</groupId>
    <artifactId>CK_Test</artifactId>
    <version>1.0.0</version>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <framework.bom.version>3.18.0</framework.bom.version>
        <maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
        <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
        <maven-source-plugin.version>3.0.1</maven-source-plugin.version>
        <maven-jar-plugin.version>3.0.2</maven-jar-plugin.version>
        <maven-war-plugin.version>3.0.0</maven-war-plugin.version>
        <maven-install-plugin.version>2.5.2</maven-install-plugin.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!-- Framework -->
            <dependency>
                <groupId>com.XXX.framework</groupId>
                <artifactId>framework-bom</artifactId>
                <version>${framework.bom.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!-- lombok -->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>1.18.2</version>
                <scope>provided</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <!-- lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <!-- guava -->
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
        </dependency>
    </dependencies>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>${maven-compiler-plugin.version}</version>
                    <configuration>
                        <source>${java.version}</source>
                        <target>${java.version}</target>
                        <encoding>${project.build.sourceEncoding}</encoding>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>${maven-surefire-plugin.version}</version>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-source-plugin</artifactId>
                    <version>${maven-source-plugin.version}</version>
                    <executions>
                        <execution>
                            <id>attach-sources</id>
                            <goals>
                                <goal>jar-no-fork</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-jar-plugin</artifactId>
                    <version>${maven-jar-plugin.version}</version>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-war-plugin</artifactId>
                    <version>${maven-war-plugin.version}</version>
                </plugin>
                <plugin>
                    <groupId>org.codehaus.mojo</groupId>
                    <artifactId>versions-maven-plugin</artifactId>
                    <version>2.5</version>
                </plugin>
                <plugin>
                    <artifactId>maven-eclipse-plugin</artifactId>
                    <version>2.9</version>
                    <configuration>
                        <downloadSources>true</downloadSources>
                        <ajdtVersion>none</ajdtVersion>
                        <additionalConfig>
                            <file>
                                <name>.settings/org.eclipse.jdt.core.prefs</name>
                                <content>
                                    org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
                                    eclipse.preferences.version=1
                                    org.eclipse.jdt.core.compiler.source=1.7
                                    org.eclipse.jdt.core.compiler.compliance=1.7
                                </content>
                            </file>
                        </additionalConfig>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>

</project>

package com.ck.test.misc;

import com.google.common.base.MoreObjects;
import com.google.common.base.Objects;
import com.google.common.collect.ComparisonChain;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Book implements Comparable<Book> {
    private String title;
    private String author;
    private String publisher;
    private String isbn;
    private double price;

    @Override
    public int hashCode() {
        return Objects.hashCode(title, author, publisher, isbn);
    }

    @Override
    public boolean equals(Object obj) {
        if(this == obj){
            return true;
        }
        if(obj == null){
            return false;
        }
        if(getClass() != obj.getClass()){
            return false;
        }
        if(!(obj instanceof Book)){
            return false;
        }
        Book other = (Book)obj;

        return Objects.equal(title, other.getTitle()) &&
                Objects.equal(author, other.getAuthor()) &&
                Objects.equal(publisher, other.getPublisher()) &&
                Objects.equal(isbn, other.getIsbn()) &&
                price == other.getPrice();
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this).omitNullValues()
                .add("title", title)
                .add("author", author)
                .add("publisher", publisher)
                .add("isbn", isbn)
                .add("price", price)
                .toString();
    }

    public static void main(String[] args){
        Book book = new Book("Core Java", "Tom", "JackMa", "11-22-33-44", 12.80);
        System.out.println(book);
    }

    @Override
    public int compareTo(Book o) {
        return ComparisonChain.start()
                .compare(this.title, o.getTitle())
                .compare(this.author, o.getAuthor())
                .compare(this.publisher, o.publisher)
                .compare(this.isbn, o.getIsbn())
                .compare(this.price, o.getPrice())
                .result();
    }

}