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hibernate oneToMany, ManyToOne, ManyToMany
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‎Hibernate/entityManyToMany/.gitignore

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/target/

‎Hibernate/entityManyToMany/.settings/org.eclipse.core.resources.prefs

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eclipse.preferences.version=1
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encoding//src/main/java=UTF-8
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encoding//src/test/java=UTF-8
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encoding/<project>=UTF-8

‎Hibernate/entityManyToMany/.settings/org.eclipse.jdt.core.prefs

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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
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org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
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org.eclipse.jdt.core.compiler.compliance=1.6
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org.eclipse.jdt.core.compiler.debug.lineNumber=generate
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org.eclipse.jdt.core.compiler.debug.localVariable=generate
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org.eclipse.jdt.core.compiler.debug.sourceFile=generate
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org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
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org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
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org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
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org.eclipse.jdt.core.compiler.source=1.6

‎Hibernate/entityManyToMany/.settings/org.eclipse.m2e.core.prefs

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activeProfiles=
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eclipse.preferences.version=1
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resolveWorkspaceProjects=true
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version=1

‎Hibernate/entityManyToMany/.settings/org.hibernate.eclipse.console.prefs

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default.configuration=
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eclipse.preferences.version=1
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hibernate3.enabled=true

‎Hibernate/entityManyToMany/.settings/org.jboss.ide.eclipse.as.core.prefs

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eclipse.preferences.version=1
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org.jboss.ide.eclipse.as.core.singledeployable.deployableList=

‎Hibernate/entityManyToMany/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.imooc</groupId>
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<artifactId>entity</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>entity</name>
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<url>http://maven.apache.org</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.hibernate</groupId>
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<artifactId>hibernate-core</artifactId>
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<version>4.1.0.Final</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.10</version>
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<scope>test</scope>
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</dependency>
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<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<version>5.1.40</version>
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</dependency>
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</dependencies>
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</project>

‎Hibernate/entityManyToMany/src/main/java/com/imooc/entity/Employee.hbm.xml

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<?xml version="1.0"?>
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<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
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"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
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<!-- Generated 2017-2-7 21:07:07 by Hibernate Tools 3.4.0.CR1 -->
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<hibernate-mapping>
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<class name="com.imooc.entity.Employee" table="employee">
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<id name="empid" type="int">
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<column name="empid" />
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<generator class="assigned" />
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</id>
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<property name="empname" type="java.lang.String">
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<column name="empname" length="20" not-null="true" />
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</property>
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<set name="projects" table="proemp">
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<key>
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<column name="rempid" />
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</key>
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<many-to-many class="com.imooc.entity.Project" column="rproid" />
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</set>
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</class>
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</hibernate-mapping>

‎Hibernate/entityManyToMany/src/main/java/com/imooc/entity/Employee.java

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package com.imooc.entity;
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import java.io.Serializable;
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import java.util.HashSet;
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import java.util.Set;
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public class Employee implements Serializable {
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private int empid;
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private String empname;
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// 添加一个项目的集合
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private Set<Project> projects = new HashSet<Project>();
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public Employee() {
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// TODO Auto-generated constructor stub
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}
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public Employee(int empid, String empname) {
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this.empid = empid;
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this.empname = empname;
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}
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@Override
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public String toString() {
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return "Employee [empid=" + empid + ", empname=" + empname + "]";
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}
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public int getEmpid() {
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return empid;
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}
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public void setEmpid(int empid) {
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this.empid = empid;
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}
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public String getEmpname() {
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return empname;
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}
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public void setEmpname(String empname) {
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this.empname = empname;
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}
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public Set<Project> getProjects() {
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return projects;
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}
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public void setProjects(Set<Project> projects) {
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this.projects = projects;
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}
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}

‎Hibernate/entityManyToMany/src/main/java/com/imooc/entity/Grade.hbm.xml

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<?xml version="1.0"?>
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<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
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"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
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<!-- Generated 2017-2-7 10:25:55 by Hibernate Tools 3.4.0.CR1 -->
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<hibernate-mapping>
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<class name="com.imooc.entity.Grade" table="grade">
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<id name="gid" type="int">
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<column name="gid" />
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<generator class="increment" />
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</id>
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<property name="gname" type="java.lang.String">
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<column name="gname" length="20" not-null="true" />
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</property>
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<property name="gdesc" type="java.lang.String">
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<column name="gdesc" />
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</property>
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<set name="students" table="student" inverse="false" lazy="true" cascade="save-update">
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<key>
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<column name="gid" />
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</key>
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<one-to-many class="com.imooc.entity.Student" />
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</set>
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</class>
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</hibernate-mapping>

‎Hibernate/entityManyToMany/src/main/java/com/imooc/entity/Grade.java

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package com.imooc.entity;
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import java.io.Serializable;
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import java.util.HashSet;
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import java.util.Set;
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public class Grade implements Serializable {
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private int gid;
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private String gname;
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private String gdesc;
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//
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private Set<Student> students = new HashSet<Student>();
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public int getGid() {
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return gid;
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}
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public void setGid(int gid) {
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this.gid = gid;
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}
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public String getGname() {
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return gname;
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}
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public void setGname(String gname) {
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this.gname = gname;
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}
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public String getGdesc() {
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return gdesc;
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}
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public void setGdesc(String gdesc) {
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this.gdesc = gdesc;
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}
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public Set<Student> getStudents() {
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return students;
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}
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public void setStudents(Set<Student> students) {
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this.students = students;
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}
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public Grade(String gname, String gdesc) {
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this.gname = gname;
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this.gdesc = gdesc;
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}
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@Override
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public String toString() {
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return "Grade [gid=" + gid + ", gname=" + gname + ", gdesc=" + gdesc
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+ ", students=" + students + "]";
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}
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public Grade() {
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// TODO Auto-generated constructor stub
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}
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}

‎Hibernate/entityManyToMany/src/main/java/com/imooc/entity/Project.hbm.xml

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<?xml version="1.0"?>
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<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
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"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
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<!-- Generated 2017-2-7 21:07:07 by Hibernate Tools 3.4.0.CR1 -->
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<hibernate-mapping>
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<class name="com.imooc.entity.Project" table="project">
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<id name="proid" type="int">
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<column name="proid" />
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<generator class="assigned" />
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</id>
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<property name="proname" type="java.lang.String">
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<column name="proname" />
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</property>
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<!-- 配置多对多的关系 -->
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<set name="employees" table="proemp" cascade="all">
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<key>
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<column name="rproid" />
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</key>
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<many-to-many class="com.imooc.entity.Employee" column="rempid" />
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</set>
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</class>
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</hibernate-mapping>

‎Hibernate/entityManyToMany/src/main/java/com/imooc/entity/Project.java

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package com.imooc.entity;
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import java.io.Serializable;
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import java.util.HashSet;
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import java.util.Set;
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public class Project implements Serializable {
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private int proid;
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private String proname;
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// 添加一个员工集合
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private Set<Employee> employees = new HashSet<Employee>();
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public Project() {
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// TODO Auto-generated constructor stub
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}
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public Project(int proid, String proname) {
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this.proid = proid;
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this.proname = proname;
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}
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public int getProid() {
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return proid;
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}
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public void setProid(int proid) {
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this.proid = proid;
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}
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public String getProname() {
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return proname;
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}
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public void setProname(String proname) {
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this.proname = proname;
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}
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public Set<Employee> getEmployees() {
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return employees;
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}
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public void setEmployees(Set<Employee> employees) {
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this.employees = employees;
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}
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@Override
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public String toString() {
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return "Project [proid=" + proid + ", proname=" + proname + "]";
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}
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}

‎Hibernate/entityManyToMany/src/main/java/com/imooc/entity/Student.hbm.xml

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<?xml version="1.0"?>
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<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
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"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
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<!-- Generated 2017-2-7 12:06:18 by Hibernate Tools 3.4.0.CR1 -->
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<hibernate-mapping>
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<class name="com.imooc.entity.Student" table="student">
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<id name="sid" type="int">
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<column name="sid" />
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<generator class="increment" />
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</id>
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<property name="sname" type="java.lang.String">
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<column name="sname" />
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</property>
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<property name="sex" type="java.lang.String">
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<column name="sex" />
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</property>
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<many-to-one name="grade" class="com.imooc.entity.Grade">
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<column name="gid" />
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</many-to-one>
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</class>
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</hibernate-mapping>

‎Hibernate/entityManyToMany/src/main/java/com/imooc/entity/Student.java

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package com.imooc.entity;
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import java.io.Serializable;
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public class Student implements Serializable {
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private int sid;
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private String sname;
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private String sex;
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private Grade grade;
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public Grade getGrade() {
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return grade;
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}
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public void setGrade(Grade grade) {
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this.grade = grade;
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}
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public Student() {
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// TODO Auto-generated constructor stub
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}
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public Student(String sname, String sex) {
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this.sname = sname;
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this.sex = sex;
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}
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@Override
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public String toString() {
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return "Student [sid=" + sid + ", sname=" + sname + ", sex=" + sex
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+ "]";
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}
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public int getSid() {
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return sid;
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}
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public void setSid(int sid) {
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this.sid = sid;
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}
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public String getSname() {
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return sname;
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}
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public void setSname(String sname) {
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this.sname = sname;
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}
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public String getSex() {
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return sex;
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}
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public void setSex(String sex) {
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this.sex = sex;
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}
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}

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