Java 8 命令行nashorn脚本（jjs）无法创建实体管理器。为什么？_Java 8_Java Ee 7_Jpa 2.1_Nashorn

Java 8 命令行nashorn脚本（jjs）无法创建实体管理器。为什么？

java-8

Java 8 命令行nashorn脚本（jjs）无法创建实体管理器。为什么？,java-8,java-ee-7,jpa-2.1,nashorn,Java 8,Java Ee 7,Jpa 2.1,Nashorn,命令行nashorn脚本（jjs）无法创建实体管理器。为什么这不起作用如何使其工作（如果有） i、 e 运行脚本看起来像这样 $ jjs -cp ".;myjpaclasses-1.jar;" myNashornScript.js i、例如，“myNashornScript.js”中包含 /* global Java, java */ print("begin test..."); var EntityManagerFactory = Java.typ

命令行nashorn脚本（jjs）无法创建实体管理器。

为什么这不起作用
如何使其工作（如果有）

i、 e

运行脚本看起来像这样

    $ jjs -cp ".;myjpaclasses-1.jar;" myNashornScript.js

i、例如，“myNashornScript.js”中包含

    /* global Java, java */
    print("begin test...");
    var EntityManagerFactory = Java.type('javax.persistence.EntityManagerFactory');
    var EntityManager = Java.type('javax.persistence.EntityManager');
    var Persistence = Java.type('javax.persistence.Persistence');
    var Employees = Java.type('aaa.bbb.ccc.jpa.Employees');
    var employees = new Employees();
    var javaImports = new JavaImporter(java.io, java.lang, java.util);

    try
    {
        with (javaImports) {

            var emf = Persistence.createEntityManagerFactory("hr_pu"); <== issue here(?)...
            var em = emf.createEntityManager();

            var query = em.createQuery(
                    "SELECT e FROM Employees e WHERE e.employeeId > ?1")
                    .setParameter(1, 100)
                    .setFirstResult(0);

            var rows = query.getResultList();

            //...print info on 2nd row object of returned list...
            //...print returned list size...
            print("rows.get(2).getFirstName()="+ rows.get(2).getFirstName()
                + "...returned row count=" + rows.size());
        }
    } catch (e) {
        print(e.message);
    }
    print("end test...");

注意：fwiw，当从java应用程序调用该脚本时，该脚本似乎工作正常…即

    package aaa.bbb.ccc.jar;

    import java.io.FileNotFoundException;
    import java.io.FileReader;
    import javax.script.ScriptEngine;
    import javax.script.ScriptEngineManager;
    import javax.script.ScriptException;

    public class RunScript {
        public static void main (String[] args) throws ScriptException, FileNotFoundException
        {
            ScriptEngineManager engineManager = new ScriptEngineManager();
            ScriptEngine engine = engineManager.getEngineByName("nashorn");
            engine.eval(new FileReader("src/main/resources/myNashornScript.js"));        
        }
    }

…即，产生

    begin test...
    [EL Warning]: transaction: 2016-05-12 14:18:00.773--ServerSession(1829217853)--PersistenceUnitInfo hr_pu has transactionType RESOURCE_LOCAL and therefore jtaDataSource will be ignored
    [EL Info]: 2016-05-12 14:18:00.78--ServerSession(1829217853)--EclipseLink, version: Eclipse Persistence Services - 2.6.3.v20160428-59c81c5
    [EL Info]: connection: 2016-05-12 14:18:01.183--ServerSession(1829217853)--/file:/C:/tools/netbeansWS/myjpaclasses/target/classes/_hr_pu login successful
    rows.get(2).getFirstName()=Alexander...returned row count=106
    end test...

感谢您的帮助/指导

附言

如果有什么不同，persistence.xml（位于“myjpaclasses.jar”的src/main/resources/META-INF中）如下所示：

    <?xml version="1.0" encoding="UTF-8"?>
    <persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
        <persistence-unit name="hr_pu" transaction-type="RESOURCE_LOCAL">      
            <jta-data-source>jdbc/HR</jta-data-source>
            <class>aaa.bbb.ccc.jpa.Regions</class>
            <class>aaa.bbb.ccc.jpa.Employees</class>
            <class>aaa.bbb.ccc.jpa.Departments</class>
            <class>aaa.bbb.ccc.jpa.Locations</class>
            <class>aaa.bbb.ccc.jpa.Jobs</class>
            <class>aaa.bbb.ccc.jpa.Countries</class>
            <exclude-unlisted-classes>false</exclude-unlisted-classes>
            <properties>
                <property name="javax.persistence.jdbc.driver" value="oracle.jdbc.OracleDriver"/>
                <property name="javax.persistence.jdbc.url" value="jdbc:oracle:thin:@localhost:1521:XE"/>
                <property name="javax.persistence.jdbc.user" value="HR"/>
                <property name="javax.persistence.jdbc.password" value="HR"/>
            </properties>
        </persistence-unit>
    </persistence>

    package aaa.bbb.ccc.jpa;

    import java.io.Serializable;
    import java.math.BigDecimal;
    import java.util.Date;
    import java.util.List;
    import javax.persistence.Basic;
    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import javax.persistence.JoinColumn;
    import javax.persistence.ManyToOne;
    import javax.persistence.OneToMany;
    import javax.persistence.Table;
    import javax.persistence.Temporal;
    import javax.persistence.TemporalType;
    import javax.persistence.UniqueConstraint;
    import javax.xml.bind.annotation.*;

    @XmlAccessorType(XmlAccessType.FIELD)
    @Entity
    @Table(name = "EMPLOYEES", uniqueConstraints = @UniqueConstraint(columnNames = {"EMAIL"}))

    @XmlRootElement
    public class Employees implements Serializable {

        @Column(name = "LAST_NAME", table = "EMPLOYEES", nullable = false, length = 25)
        @Basic
        private String lastName;

        @Column(name = "HIRE_DATE", table = "EMPLOYEES", nullable = false)
        @Temporal(TemporalType.TIMESTAMP)
        @Basic
        private Date hireDate;

        @ManyToOne(targetEntity = Departments.class)
        @JoinColumn(name = "DEPARTMENT_ID", referencedColumnName = "DEPARTMENT_ID")
        private Departments departmentId;

        @Column(name = "EMPLOYEE_ID", table = "EMPLOYEES", nullable = false)
        @Id
        private Integer employeeId;

        @ManyToOne(targetEntity = Employees.class)
        @JoinColumn(name = "MANAGER_ID", referencedColumnName = "EMPLOYEE_ID")
        private Employees managerId;

        @Column(name = "SALARY", table = "EMPLOYEES", scale = 2, precision = 8)
        @Basic
        private BigDecimal salary;

        @Column(name = "COMMISSION_PCT", table = "EMPLOYEES", scale = 2, precision = 2)
        @Basic
        private BigDecimal commissionPct;

        @XmlTransient
        @OneToMany(targetEntity = Employees.class, mappedBy = "managerId")
        private List<Employees> employeesCollection;

        @Column(name = "FIRST_NAME", table = "EMPLOYEES", length = 20)
        @Basic
        private String firstName;

        @ManyToOne(optional = false, targetEntity = Jobs.class)
        @JoinColumn(name = "JOB_ID", referencedColumnName = "JOB_ID")
        private Jobs jobId;

        @Column(name = "PHONE_NUMBER", table = "EMPLOYEES", length = 20)
        @Basic
        private String phoneNumber;

        @XmlTransient
        @OneToMany(targetEntity = Departments.class, mappedBy = "managerId")
        private List<Departments> departmentsCollection;

        @Column(name = "EMAIL", table = "EMPLOYEES", nullable = false, length = 25)
        @Basic
        private String email;

        public Employees() {

        }

        public String getLastName() {
            return this.lastName;
        }

        public void setLastName(String lastName) {
            this.lastName = lastName;
        }

        public Date getHireDate() {
            return this.hireDate;
        }

        public void setHireDate(Date hireDate) {
            this.hireDate = hireDate;
        }

        public Departments getDepartmentId() {
            return this.departmentId;
        }

        public void setDepartmentId(Departments departmentId) {
            this.departmentId = departmentId;
        }

        public Integer getEmployeeId() {
            return this.employeeId;
        }

        public void setEmployeeId(Integer employeeId) {
            this.employeeId = employeeId;
        }

        public Employees getManagerId() {
            return this.managerId;
        }

        public void setManagerId(Employees managerId) {
            this.managerId = managerId;
        }

        public BigDecimal getSalary() {
            return this.salary;
        }

        public void setSalary(BigDecimal salary) {
            this.salary = salary;
        }

        public BigDecimal getCommissionPct() {
            return this.commissionPct;
        }

        public void setCommissionPct(BigDecimal commissionPct) {
            this.commissionPct = commissionPct;
        }

        @XmlTransient
        public List<Employees> getEmployeesCollection() {
            return this.employeesCollection;
        }

        public void setEmployeesCollection(List<Employees> employeesCollection) {
            this.employeesCollection = employeesCollection;
        }

        public String getFirstName() {
            return this.firstName;
        }

        public void setFirstName(String firstName) {
            this.firstName = firstName;
        }

        public Jobs getJobId() {
            return this.jobId;
        }

        public void setJobId(Jobs jobId) {
            this.jobId = jobId;
        }

        public String getPhoneNumber() {
            return this.phoneNumber;
        }

        public void setPhoneNumber(String phoneNumber) {
            this.phoneNumber = phoneNumber;
        }

        @XmlTransient
        public List<Departments> getDepartmentsCollection() {
            return this.departmentsCollection;
        }

        public void setDepartmentsCollection(List<Departments> departmentsCollection) {
            this.departmentsCollection = departmentsCollection;
        }

        public String getEmail() {
            return this.email;
        }

        public void setEmail(String email) {
            this.email = email;
        }
    }


jdbc/HR
aaa.bbb.ccc.jpa.地区
aaa.bbb.ccc.jpa.员工
aaa.bbb.ccc.jpa.部门
aaa.bbb.ccc.jpa.位置
aaa.bbb.ccc.jpa.Jobs
aaa.bbb.ccc.jpa.国家/地区
假的

JPA“Employee”类如下所示：

    <?xml version="1.0" encoding="UTF-8"?>
    <persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
        <persistence-unit name="hr_pu" transaction-type="RESOURCE_LOCAL">      
            <jta-data-source>jdbc/HR</jta-data-source>
            <class>aaa.bbb.ccc.jpa.Regions</class>
            <class>aaa.bbb.ccc.jpa.Employees</class>
            <class>aaa.bbb.ccc.jpa.Departments</class>
            <class>aaa.bbb.ccc.jpa.Locations</class>
            <class>aaa.bbb.ccc.jpa.Jobs</class>
            <class>aaa.bbb.ccc.jpa.Countries</class>
            <exclude-unlisted-classes>false</exclude-unlisted-classes>
            <properties>
                <property name="javax.persistence.jdbc.driver" value="oracle.jdbc.OracleDriver"/>
                <property name="javax.persistence.jdbc.url" value="jdbc:oracle:thin:@localhost:1521:XE"/>
                <property name="javax.persistence.jdbc.user" value="HR"/>
                <property name="javax.persistence.jdbc.password" value="HR"/>
            </properties>
        </persistence-unit>
    </persistence>

    package aaa.bbb.ccc.jpa;

    import java.io.Serializable;
    import java.math.BigDecimal;
    import java.util.Date;
    import java.util.List;
    import javax.persistence.Basic;
    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import javax.persistence.JoinColumn;
    import javax.persistence.ManyToOne;
    import javax.persistence.OneToMany;
    import javax.persistence.Table;
    import javax.persistence.Temporal;
    import javax.persistence.TemporalType;
    import javax.persistence.UniqueConstraint;
    import javax.xml.bind.annotation.*;

    @XmlAccessorType(XmlAccessType.FIELD)
    @Entity
    @Table(name = "EMPLOYEES", uniqueConstraints = @UniqueConstraint(columnNames = {"EMAIL"}))

    @XmlRootElement
    public class Employees implements Serializable {

        @Column(name = "LAST_NAME", table = "EMPLOYEES", nullable = false, length = 25)
        @Basic
        private String lastName;

        @Column(name = "HIRE_DATE", table = "EMPLOYEES", nullable = false)
        @Temporal(TemporalType.TIMESTAMP)
        @Basic
        private Date hireDate;

        @ManyToOne(targetEntity = Departments.class)
        @JoinColumn(name = "DEPARTMENT_ID", referencedColumnName = "DEPARTMENT_ID")
        private Departments departmentId;

        @Column(name = "EMPLOYEE_ID", table = "EMPLOYEES", nullable = false)
        @Id
        private Integer employeeId;

        @ManyToOne(targetEntity = Employees.class)
        @JoinColumn(name = "MANAGER_ID", referencedColumnName = "EMPLOYEE_ID")
        private Employees managerId;

        @Column(name = "SALARY", table = "EMPLOYEES", scale = 2, precision = 8)
        @Basic
        private BigDecimal salary;

        @Column(name = "COMMISSION_PCT", table = "EMPLOYEES", scale = 2, precision = 2)
        @Basic
        private BigDecimal commissionPct;

        @XmlTransient
        @OneToMany(targetEntity = Employees.class, mappedBy = "managerId")
        private List<Employees> employeesCollection;

        @Column(name = "FIRST_NAME", table = "EMPLOYEES", length = 20)
        @Basic
        private String firstName;

        @ManyToOne(optional = false, targetEntity = Jobs.class)
        @JoinColumn(name = "JOB_ID", referencedColumnName = "JOB_ID")
        private Jobs jobId;

        @Column(name = "PHONE_NUMBER", table = "EMPLOYEES", length = 20)
        @Basic
        private String phoneNumber;

        @XmlTransient
        @OneToMany(targetEntity = Departments.class, mappedBy = "managerId")
        private List<Departments> departmentsCollection;

        @Column(name = "EMAIL", table = "EMPLOYEES", nullable = false, length = 25)
        @Basic
        private String email;

        public Employees() {

        }

        public String getLastName() {
            return this.lastName;
        }

        public void setLastName(String lastName) {
            this.lastName = lastName;
        }

        public Date getHireDate() {
            return this.hireDate;
        }

        public void setHireDate(Date hireDate) {
            this.hireDate = hireDate;
        }

        public Departments getDepartmentId() {
            return this.departmentId;
        }

        public void setDepartmentId(Departments departmentId) {
            this.departmentId = departmentId;
        }

        public Integer getEmployeeId() {
            return this.employeeId;
        }

        public void setEmployeeId(Integer employeeId) {
            this.employeeId = employeeId;
        }

        public Employees getManagerId() {
            return this.managerId;
        }

        public void setManagerId(Employees managerId) {
            this.managerId = managerId;
        }

        public BigDecimal getSalary() {
            return this.salary;
        }

        public void setSalary(BigDecimal salary) {
            this.salary = salary;
        }

        public BigDecimal getCommissionPct() {
            return this.commissionPct;
        }

        public void setCommissionPct(BigDecimal commissionPct) {
            this.commissionPct = commissionPct;
        }

        @XmlTransient
        public List<Employees> getEmployeesCollection() {
            return this.employeesCollection;
        }

        public void setEmployeesCollection(List<Employees> employeesCollection) {
            this.employeesCollection = employeesCollection;
        }

        public String getFirstName() {
            return this.firstName;
        }

        public void setFirstName(String firstName) {
            this.firstName = firstName;
        }

        public Jobs getJobId() {
            return this.jobId;
        }

        public void setJobId(Jobs jobId) {
            this.jobId = jobId;
        }

        public String getPhoneNumber() {
            return this.phoneNumber;
        }

        public void setPhoneNumber(String phoneNumber) {
            this.phoneNumber = phoneNumber;
        }

        @XmlTransient
        public List<Departments> getDepartmentsCollection() {
            return this.departmentsCollection;
        }

        public void setDepartmentsCollection(List<Departments> departmentsCollection) {
            this.departmentsCollection = departmentsCollection;
        }

        public String getEmail() {
            return this.email;
        }

        public void setEmail(String email) {
            this.email = email;
        }
    }

包aaa.bbb.ccc.jpa；
导入java.io.Serializable；
导入java.math.BigDecimal；
导入java.util.Date；
导入java.util.List；
导入javax.persistence.Basic；
导入javax.persistence.Column；
导入javax.persistence.Entity；
导入javax.persistence.Id；
导入javax.persistence.JoinColumn；
导入javax.persistence.manytone；
导入javax.persistence.OneToMany；
导入javax.persistence.Table；
导入javax.persistence.Temporal；
导入javax.persistence.TemporalType；
导入javax.persistence.UniqueConstraint；
导入javax.xml.bind.annotation.*；
@XmlAccessorType（XmlAccessType.FIELD）
@实体
@表（name=“EMPLOYEES”，uniqueConstraints=@UniqueConstraint（columnNames={“EMAIL”}））
@XmlRootElement
公共类Employees实现可序列化{
@列（name=“LAST_name”，table=“EMPLOYEES”，nullable=false，length=25）
@基本的
私有字符串lastName；
@列（name=“HIRE\u DATE”，table=“EMPLOYEES”，nullable=false）
@时态（TemporalType.TIMESTAMP）
@基本的
私人约会；
@多通（targetEntity=Departments.class）
@JoinColumn（name=“DEPARTMENT\u ID”，referencedColumnName=“DEPARTMENT\u ID”）
私家部门ID；
@列（name=“EMPLOYEE\u ID”，table=“EMPLOYEES”，nullable=false）
@身份证
私有整数employeeId；
@多通（targetEntity=Employees.class）
@JoinColumn（name=“MANAGER\u ID”，referencedColumnName=“EMPLOYEE\u ID”）
私人雇员；
@列（name=“SALARY”，table=“EMPLOYEES”，标尺=2，精度=8）
@基本的
私人薪酬；
@列（name=“佣金”，table=“员工”，比例=2，精度=2）
@基本的
私人大十进位佣金；
@XmlTransient
@OneToMany（targetEntity=Employees.class，mappedBy=“managerId”）
私人名单雇员集合；
@列（name=“FIRST_name”，table=“EMPLOYEES”，长度=20）
@基本的
私有字符串名；
@manytone（可选=false，targetEntity=Jobs.class）
@JoinColumn（name=“JOB\u ID”，referencedColumnName=“JOB\u ID”）
私人职位；
@列（name=“PHONE\u NUMBER”，table=“EMPLOYEES”，长度=20）
@基本的
私有字符串电话号码；
@XmlTransient
@OneToMany（targetEntity=Departments.class，mappedBy=“managerId”）
私人名单部门集合；
@列（name=“EMAIL”、table=“EMPLOYEES”、nullable=false、length=25）
@基本的
私人字符串电子邮件；
公职人员（）{
}
公共字符串getLastName（）{
返回this.lastName；
}
public void setLastName（字符串lastName）{
this.lastName=lastName；
}
公开日期getHireDate（）{
把这个还给我；
}
公共无效截止日期（截止日期）{
this.hireDate=hireDate；
}
公共部门getDepartmentId（）{
返回此.departmentId；
}
公共作废setDepartmentId（部门ID）{
this.departmentId=部门ID；
}
公共整数getEmployeeId（）{
返回此.employeeId；
}
public void setEmployeeId（整数employeeId）{
this.employeeId=employeeId；
}
公共雇员getManagerId（）{
返回这个.managerId；
}
public void setManagerId（Employees managerId）{
this.managerId=managerId；
}
公共工资（）{
退还此工资；
}
公共无效设置薪资（大十进制薪资）{
这个。薪水=薪水；
}
public BigDecimal getCommissionPct（）{
返回此.commissionPct；
}
公共无效设置佣金PCT（BigDecimal佣金PCT）{
this.commissionPct=commissionPct；
}
@XmlTransient
公共列表getEmployeesCollection（）{
返回此.employeesCollection；
}
公共作废setEmployeesCollection（列出employeesCollection）{
this.employeescolection=employeescolection；
}
公共字符串getFirstName（）{
返回这个.firstName；
}
public void setFirstName（字符串firstName）{
this.firstName=firstName；
}
公共作业getJobId（）{
返回此.jobId；
}
public void setJobId（Jobs jobId）{
this.jobId=jobId；
}
公共字符串getPhoneNumber（）{
返回此.phoneNumber；
}
public void setPhoneNumber（字符串phoneNumber）{
var EntityManagerFactory = Java.type('javax.persistence.EntityManagerFactory');
// set the thread context class to be the loader of EntityManagerFactory class
var cls = EntityManagerFactory.class;
java.lang.Thread.currentThread().contextClassLoader = cls.classLoader;
//... rest of your script..