Changes between Version 27 and Version 28 of waue/2011/spring

Timestamp:

Aug 29, 2011, 4:17:51 PM (13 years ago)

Author:

waue

Comment:

--

waue/2011/spring

@@ -549 +549 @@
 
 
-
+ == properties / xml  == 
+
+藉由這個類別，您可以在.properties中設定一些優先屬性設定，這個設定如果與XML中的屬性定義有相衝突，則以.properties中的設定為主
+
+注意！ 此時 properties 檔必須跟 xml 檔放在一起
+
+注意！ xml 內的value 值無意義，因為都已 properties 為主，而 properties 也不可以因為 xml 已經設定了該property 屬性，而不給 aaBean.helloWord
+
+
+ * /waue_one.properties
+
+{{{
+#!java
+aaBean.helloWord=Setup Properties with beans-config 
+}}}
+
+ * /beans-config.xml
+
+{{{
+#!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"
+        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
+    <bean id="configBean" 
+  class="org.springframework.beans.factory.config.PropertyOverrideConfigurer"> 
+        <property name="location"> 
+            <value>waue_one.properties</value> 
+        </property> 
+    </bean> 
+
+    <bean id="aaBean" class="waue.one.AaBean"> 
+        <property name="helloWord"> 
+            <value> </value> 
+        </property> 
+    </bean>
+
+</beans>
+}}}
+
+ * src/waue/one/SpringDemo.java (同前)
+
+{{{
+#!java
+package waue.one; 
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.FileSystemXmlApplicationContext; 
+
+public class SpringDemo { 
+    public static void main(String[] args) throws InterruptedException { 
+        ApplicationContext context = 
+            new FileSystemXmlApplicationContext("beans-config.xml");
+         
+        AaBean hello = 
+            (AaBean) context.getBean("aaBean");
+        System.out.println(hello.getHelloWord());
+    } 
+}
+}}}
+
+ * src/waue/one/AaBean.java (同前)
+
+{{{
+#!java
+package waue.one; 
+
+public class AaBean { 
+    private String helloWord;
+    
+    public AaBean() {
+    }
+    
+    public void setHelloWord(String helloWord) { 
+        this.helloWord = helloWord;
+    } 
+    public String getHelloWord() { 
+        return helloWord; 
+    }
+}
+}}}