Spring_DI_XML_03

歡迎移步部落格檢視-http://futaosmile.oschina.io/coder957

基于XMl的DI

匿名Bean
匿名内部Bean
同類抽象Bean
異類抽象Bean
多個配置檔案-平行關系
多個配置檔案-包含關系

沒有id，但是可以通過autowire="byType"找到。

即：不能通過getBean()得到這個Bean

School類

package Part03.InnerNonameBean;

/**
 * Created by futao on 2017/10/12.
 */
public class School {
    private String sname;

    public String getSname() {
        return sname;
    }

    public void setSname(String sname) {
        this.sname = sname;
    }

    @Override
    public String toString() {
        return "School{" +
                "sname='" + sname + '\'' +
                '}';
    }
}

Student類

package Part03.InnerNonameBean;

/**
 * Created by futao on 2017/10/12.
 */
public class Student {
    private String sname;
    private int age;
    private School school;

    public String getSname() {
        return sname;
    }

    public void setSname(String sname) {
        this.sname = sname;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public School getSchool() {
        return school;
    }

    public void setSchool(School school) {
        this.school = school;
    }

    @Override
    public String toString() {
        return "Student{" +
                "sname='" + sname + '\'' +
                ", age=" + age +
                ", school=" + school +
                '}';
    }
}

配置檔案

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <!--這個bean沒有id屬性，是以是匿名的-->
    <bean class="Part03.InnerNonameBean.School">
        <property name="sname" value="Ecjtu"/>
    </bean>
    <bean id="student" class="Part03.InnerNonameBean.Student" autowire="byType">
        <property name="sname" value="小王"/>
        <property name="age" value="18"/>
    </bean>
</beans>

測試

/**
     * 匿名類/匿名内部類
     */
    @Test
    fun test4NonameBean() {
        val classPathXmlApplicationContext = ClassPathXmlApplicationContext("applicationContextInnerNonameBean.xml")
        val student = classPathXmlApplicationContext.getBean("student") as Part03.InnerNonameBean.Student
        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(student))
    }

結果

{
  "sname": "小王",
  "age": 18,
  "school": {
    "sname": "Ecjtu"
  }
}

特點：

1.匿名的，是以該bean在配置檔案中沒有id屬性，也就不能通過getBean()得到

2.内部的，該bean被其他bean的屬性标簽包裹，是以也無法通過autowire="byType"得到。是以這個bean隻能被這個包裹他的bean所使用

修改配置檔案

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="student" class="Part03.InnerNonameBean.Student">
        <property name="sname" value="小王"/>
        <property name="age" value="18"/>
        <property name="school">
            <!--1.這個bean沒有id屬性，是以是匿名的-->
            <!--2.這個bean是在student的school屬性中，是以是内部的-->
            <bean class="Part03.InnerNonameBean.School">
                <property name="sname" value="Ecjtu"/>
            </bean>
        </property>
    </bean>
</beans>

abstract="true"

package Part03.SameAbstractBean;

/**
 * Created by futao on 2017/10/12.
 */
public class Student {
    private String sname;
    private int age;
    private String school;
    private String department;

    public String getSname() {
        return sname;
    }

    public void setSname(String sname) {
        this.sname = sname;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getSchool() {
        return school;
    }

    public void setSchool(String school) {
        this.school = school;
    }

    public String getDepartment() {
        return department;
    }

    public void setDepartment(String department) {
        this.department = department;
    }

    @Override
    public String toString() {
        return "Student{" +
                "sname='" + sname + '\'' +
                ", age=" + age +
                ", school='" + school + '\'' +
                ", department='" + department + '\'' +
                '}';
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <!--傳統方式，代碼大量備援-->
    <bean id="student1" class="Part03.SameAbstractBean.Student">
        <property name="sname" value="張三"/>
        <property name="age" value="18"/>
        <property name="school" value="Ecjtu"/>
        <property name="department" value="計算機學院"/>
    </bean>
    <bean id="student2" class="Part03.SameAbstractBean.Student">
        <property name="sname" value="李四"/>
        <property name="age" value="38"/>
        <property name="school" value="NCDX"/>
        <property name="department" value="軟體學院"/>
    </bean>
    <bean id="student3" class="Part03.SameAbstractBean.Student">
        <property name="sname" value="王五"/>
        <property name="age" value="68"/>
        <property name="school" value="SHJD"/>
        <property name="department" value="計算機科學學院"/>
    </bean>
    <!--同類抽象Bean，抽象的 abstract="true"-->
    <bean id="baseStudent" class="Part03.SameAbstractBean.Student" abstract="true">
        <property name="school" value="Ecjtu"/>
        <property name="department" value="計算機科學"/>
    </bean>
    <bean id="student1-1" parent="baseStudent">
        <property name="age" value="100"/>
    </bean>
    <bean id="student1-2" parent="baseStudent">
        <property name="school" value="NCDX"/>
    </bean>
</beans>

/**
     * 同類抽象Bean
     */
    @Test
    fun test4SameAbstractBean() {
        val classPathXmlApplicationContext = ClassPathXmlApplicationContext("applicationContextSameAbstractBean.xml")
//        val student1 = classPathXmlApplicationContext.getBean("student1") as Part03.SameAbstractBean.Student
//        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(student1))
//        val student2 = classPathXmlApplicationContext.getBean("student2") as Part03.SameAbstractBean.Student
//        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(student2))
//        val student3 = classPathXmlApplicationContext.getBean("student3") as Part03.SameAbstractBean.Student
//        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(student3))

        val baseStudent = classPathXmlApplicationContext.getBean("baseStudent") as Part03.SameAbstractBean.Student
        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(baseStudent))
        val student11 = classPathXmlApplicationContext.getBean("student1-1") as Part03.SameAbstractBean.Student
        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(student11))
        val student12 = classPathXmlApplicationContext.getBean("student1-2") as Part03.SameAbstractBean.Student
        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(student12))


    }

{
  "sname": null,
  "age": 0,
  "school": "Ecjtu",
  "department": "計算機科學"
}
{
  "sname": null,
  "age": 100,
  "school": "Ecjtu",
  "department": "計算機科學"
}
{
  "sname": null,
  "age": 0,
  "school": "NCDX",
  "department": "計算機科學"
}

将一部分bean的某些相同的屬性拿出來，組成一個bean，這個bean沒有class，需要标注 abstract="true"

package Part03.DiffAbstractBean;

/**
 * Created by futao on 2017/10/12.
 */
public class Student {
    private String name;
    private int age;
    private String school;
    private String department;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getSchool() {
        return school;
    }

    public void setSchool(String school) {
        this.school = school;
    }

    public String getDepartment() {
        return department;
    }

    public void setDepartment(String department) {
        this.department = department;
    }

    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", school='" + school + '\'' +
                ", department='" + department + '\'' +
                '}';
    }
}

Teacher類

package Part03.DiffAbstractBean;

/**
 * Created by futao on 2017/10/12.
 */
public class Teacher {
    private String name;
    private int wordAge;
    private String school;
    private String department;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getWordAge() {
        return wordAge;
    }

    public void setWordAge(int wordAge) {
        this.wordAge = wordAge;
    }

    public String getSchool() {
        return school;
    }

    public void setSchool(String school) {
        this.school = school;
    }

    public String getDepartment() {
        return department;
    }

    public void setDepartment(String department) {
        this.department = department;
    }

    @Override
    public String toString() {
        return "Teacher{" +
                "name='" + name + '\'' +
                ", wordAge=" + wordAge +
                ", school='" + school + '\'' +
                ", department='" + department + '\'' +
                '}';
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <!--異類抽象Bean-->
    <bean id="baseBean" abstract="true">
        <property name="school" value="華東交通大學111"/>
        <property name="department" value="計算機科學"/>
    </bean>
    <bean id="student" class="Part03.DiffAbstractBean.Student" parent="baseBean">
        <property name="name" value="張三"/>
        <property name="age" value="23"/>
        <!--<property name="school" value="Ecjtu"/>-->
        <!--<property name="department" value="軟體學院"/>-->
    </bean>
    <bean id="teacher" class="Part03.DiffAbstractBean.Teacher" parent="baseBean">
        <property name="name" value="老王"/>
        <property name="wordAge" value="18"/>
        <!--<property name="department" value="軟體學院"/>-->
        <!--<property name="school" value="Ecjtu"/>-->
    </bean>
</beans>

/**
     * 異類抽象Bean
     */
    @Test
    fun test4DiffAbstractBean() {
        val classPathXmlApplicationContext = ClassPathXmlApplicationContext("applicationContextDiffAbstractBean.xml")
        val student = classPathXmlApplicationContext.getBean("student") as Part03.DiffAbstractBean.Student
        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(student))

        val teacher = classPathXmlApplicationContext.getBean("teacher") as Teacher
        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(teacher))
    }

{
  "name": "張三",
  "age": 23,
  "school": "華東交通大學111",
  "department": "計算機科學"
}
{
  "name": "老王",
  "wordAge": 18,
  "school": "華東交通大學111",
  "department": "計算機科學"
}

為Spring 配置多個子配置檔案-平行關系

多個配置檔案，加載的時候加載多個就行

配置檔案1

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="student" class="Part03.ManyChildXmlFileParallel.Student">
    <property name="name" value="File1"/>
    <property name="age" value="18"/>
    <property name="school" value="華東交通大學"/>
    <property name="department" value="軟體"/>
</bean>
</beans>

配置檔案2

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="teacher" class="Part03.ManyChildXmlFileParallel.Teacher">
        <property name="name" value="File2"/>
        <property name="wordAge" value="28"/>
        <property name="department" value="計算機"/>
        <property name="school" value="Ecjjtu"/>
    </bean>
</beans>

/**
     * 為Spring配置多個配置檔案-平行關系
     */
    @Test
    fun test4ManyChildXmlFile() {
             //使用通配符*
        //val classPathXmlApplicationContext = ClassPathXmlApplicationContext("applicationContextManyChildXmlFile*")
        val classPathXmlApplicationContext = ClassPathXmlApplicationContext("applicationContextManyChildXmlFile1.xml", "applicationContextManyChildXmlFile2.xml")
        val student = classPathXmlApplicationContext.getBean("student") as Part03.ManyChildXmlFileParallel.Student
        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(student))

        val teacher = classPathXmlApplicationContext.getBean("teacher") as Part03.ManyChildXmlFileParallel.Teacher
        println(GsonBuilder().serializeNulls().setPrettyPrinting().create().toJson(teacher))

    }

{
  "name": "File1",
  "age": 18,
  "school": "華東交通大學",
  "department": "軟體"
}
{
  "name": "File2",
  "wordAge": 28,
  "school": "Ecjjtu",
  "department": "計算機"
}

為Spring配置多個子配置檔案-包含關系

在主配置中使用<import />将子配置檔案導入到主配置檔案中，是以程式隻需要加載主配置檔案。

主配置檔案

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <!--導入子配置檔案-->
    <!--<import resource="applicationContextManyChildXmlFile1.xml"/>-->
    <!--<import resource="applicationContextManyChildXmlFile2.xml"/>-->
    <!--使用通配符-->
    <import resource="applicationContextManyChildXmlFile*.xml"/>
</beans>

Spring_DI_XML_03

為Spring 配置多個子配置檔案-平行關系

為Spring配置多個子配置檔案-包含關系

繼續閱讀

關于Gradle配置的小結

Java小案例——随機數猜測随機數猜測

nginx location中斜線的位置的重要性

27 Best Free Eclipse Plug-ins for Java Developer to be ProductiveCode Quality PluginsText Editor PluginsDependency ManagementVersion Control Integration PluginsFramework Development Continuous Integration Related PluginsOther Utility Plugins

Java String.format方法的簡單使用

neo4j之cypher使用文檔

GitHub連夜封殺！這份阿裡 10W 字内部 Java 字面試手冊到底有多強？

spark/scala關于【資源檔案】加載方法概述外部檔案加載方案測試資源檔案打包入jar包中小結

mybatis_入門程式Mybatis入門

AOP程式設計_Android優雅權限架構(1)概念基礎，2021金三銀四前言正文大綱正文

Effective Java 8:通用程式設計

OOM三種類型

工廠模式-三種類型

【遞歸】高效率求2的n次幂

win10本地scala和spark安裝安裝scala安裝spark

scala (3) Function 和 Method