Changes between Version 18 and Version 19 of waue/2011/spring

Timestamp:

Aug 26, 2011, 4:19:35 PM (14 years ago)

Author:

waue

Comment:

--

waue/2011/spring

@@ -251 +251 @@
  == bean 間的引用 == 
 
-在定義Bean時，除了直接指定值給屬性值之外，還可以直接參考定義檔中的其它Bean，例如HelloBean是這樣的話：
-
- *  HelloBean.java
-
-{{{
-#!java
-package onlyfun.caterpillar; 
+ *  BBean.java
+
+{{{
+#!java
+package waue.org; 
 
 import java.util.Date; 
 
-public class HelloBean { 
-    private String helloWord; 
+public class BBean { 
+    private String baa; 
     private Date date; 
     
-    public void setHelloWord(String helloWord) { 
-        this.helloWord = helloWord; 
-    } 
-    public String getHelloWord() { 
-        return helloWord; 
+    public void setBaa(String ba) { 
+        this.baa = ba; 
+    } 
+    public String getBaa() { 
+        return this.baa; 
     } 
     public void setDate(Date date) { 
@@ -275 +273 @@
     }    
     public Date getDate() { 
-        return date; 
-    } 
-}
-}}}
-
-在以下的Bean定義檔中，先定義了一個dateBean，之後helloBean可以直接參考至dateBean，Spring會幫我們完成這個依賴關係：
-
- *  beans-config.xml
+        return this.date; 
+    } 
+}
+}}}
+
+在以下的Bean定義檔中，先定義了一個dateBean，之後bBean可以直接參考至dateBean，Spring會幫我們完成這個依賴關係：
+
+ *  A.xml
 
 {{{
@@ -293 +291 @@
     <bean id="dateBean" class="java.util.Date"/> 
     
-    <bean id="helloBean" class="onlyfun.caterpillar.HelloBean"> 
-        <property name="helloWord"> 
+    <bean id="bBean" class="waue.org.BBean"> 
+        <property name="baa"> 
             <value>Hello!</value> 
         </property> 
@@ -306 +304 @@
 直接指定值或是使用<ref>直接指定參考至其它的Bean，撰寫以下的程式來測試Bean的依賴關係是否完成：
 
- *  SpringDemo.java
-
-{{{
-#!java
-package onlyfun.caterpillar; 
+ *  C.java
+
+{{{
+#!java
+package waue.org; 
 
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.support.FileSystemXmlApplicationContext; 
 
-public class SpringDemo { 
+public class C { 
     public static void main(String[] args) { 
         ApplicationContext context = 
-            new FileSystemXmlApplicationContext("beans-config.xml");
+            new FileSystemXmlApplicationContext("A.xml");
          
-        HelloBean hello = 
-            (HelloBean) context.getBean("helloBean");
-        System.out.print(hello.getHelloWord());
+        BBean hello = 
+            (BBean) context.getBean("bBean");
+        System.out.print(hello.getBaa());
         System.out.print(" It's ");
         System.out.print(hello.getDate());