Create List, Map In Context : Properties Injection « Spring « Java Tutorial






File: context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
                           http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.5.xsd
                           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
                           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">

    <bean id="transactionManager" class="MyTransactionManager"/>

    <util:constant id="X" static-field="java.lang.Integer.MAX_VALUE"/>

    <util:list id="Y" list-class="java.util.ArrayList">
        <value>value1</value>
        <ref bean="X"/>
    </util:list>

    <util:list id="greetingsList">
        <value>Hello, world</value>
        <value>How are you doing today?</value>
    </util:list>

    <util:map id="Z" map-class="java.util.HashMap">
        <entry key="x" value="y"/>
        <entry key="y"><ref bean="X"/></entry>
    </util:map>

    <util:properties id="P" location="classpath:Main.properties"/>

    <bean id="simple" class="SimpleBean"/>

    <util:property-path id="Q" path="simple.name"/>

    <util:set id="S" set-class="java.util.HashSet">
        <value>foo</value>
        <ref bean="X"/>
    </util:set>

</beans>

File: Main.java

import java.util.List;
import java.util.Map;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.transaction.TransactionDefinition;
import org.springframework.transaction.TransactionException;
import org.springframework.transaction.support.AbstractPlatformTransactionManager;
import org.springframework.transaction.support.DefaultTransactionStatus;

public class Main {
  private static void printMap(Map z) {
    for (Object o : z.entrySet()) {
      Map.Entry e = (Map.Entry) o;
      System.out.println(e.getKey() + " => " + e.getValue().getClass() + " " + e.getValue());
    }
  }

  private static void printList(List y) {
    for (Object o : y) {
      System.out.println(o.getClass() + " " + o);
    }
  }

  public static void main(String[] args) throws Exception {
    ApplicationContext context = new ClassPathXmlApplicationContext("classpath*:**/context.xml");

    List y = (List) context.getBean("Y");
    printList(y);

    Map z = (Map) context.getBean("Z");
    printMap(z);

    Map p = (Map) context.getBean("P");
    printMap(p);
  }
}

class MyTransactionManager extends AbstractPlatformTransactionManager {

  @Override
  protected Object doGetTransaction() throws TransactionException {
    System.out.println("doGetTransaction");
    return new Object();
  }

  @Override
  protected void doBegin(Object object, TransactionDefinition transactionDefinition)
      throws TransactionException {
    System.out.println("doBegin");
  }

  @Override
  protected void doCommit(DefaultTransactionStatus defaultTransactionStatus)
      throws TransactionException {
    System.out.println("doCommit");
  }

  @Override
  protected void doRollback(DefaultTransactionStatus defaultTransactionStatus)
      throws TransactionException {
    System.out.println("doRollback");
  }
}

class SimpleBean {
  private String name;

  private String value;

  public SimpleBean() {
    this.name = "My name";
    this.value = "My value";
  }

  public String getName() {
    return name;
  }

  public String getValue() {
    return value;
  }
}

File: Main.properties

foo=bar
baz=foobar
  Download:  Spring-CreateUtilListMapInContext.zip( 4,651 k)








28.5.Properties Injection
28.5.1.Fill Map
28.5.2.Fill Set
28.5.3.Fill Properties
28.5.4.Fill List To Another List
28.5.5.Fill Calendar Object To List
28.5.6.Properties Setting: Date
28.5.7.Property Setting Byte Array
28.5.8.Property Setting Boolean
28.5.9.Property Setting: BigDecimal
28.5.10.Property Setting Properties
28.5.11.Property Setting Integer
28.5.12.Property Setting File
28.5.13.Property Setting Class type
28.5.14.Property Setting Stream From URL
28.5.15.Property Setting: URL
28.5.16.Property Setting String Array
28.5.17.Fill Value To List
28.5.18.Create List, Map In Context
28.5.19.Bean Injection: Map
28.5.20.Bean Injection: Collection Set
28.5.21.Bean Injection Collection Properties
28.5.22.Bean Injection: Collection Map
28.5.23.Bean Injection: Collection List
28.5.24.Load property File In Context