爲什麼autowire setter值未設置？

Question

我有這樣一類這個

public class ServiceImpl { 
private boolean required = false; 

public ServiceImpl (Log log) { 
    this.db = Registry.getDatabase(this); 
    this.log = log; 
    rt = new Table(log, db); 
    it = new ItemTable(log, db, rt); 
    gt = new GroupTable(log, db); 
} 

public ServiceImpl() { 
     this.db = Registry.getDatabase(this); 
     log = Registry.getLog(this); 
     rt = new Table(log, db); 
     it = new ItemTable(log, db, rt); 
     gt = new GroupTable(log, db); 
} 
public void trySomething(Collection someList, int value) { 
    for(int i=0; true; i++){ 
     try{ 
      doSomething(someList,value); 
      return; 
     } catch (..) { 
     ... 
     } 
    } 
} 

public void doSomething(Collection someList, int someValue) { 
... 
    //sysout(required) - prints false (expected to be true...) 
    if(!required) { 
     execute A 
    } else { 
     execute B 
    } 
... 
} 

public setRequired(boolean required){ 
    this.required = required 
    //sysout(required) - prints true 
} 

二班（上一級）

abstract class Synch { 
... 
private ServiceImpl service; 
protected synch(Log log, ServiceImpl service, Keys key) { 
this.log = log; 
this.key = key; 
this.service = service; 
} 
.... 
void execute(){ 
try{ 
service.trySomething(someList,someValue); 
}.. 

protected abstract void service() throws LockException(){ 
return service; 
} 
.... 

我的XML

... 
<bean id="service" class="com.ort.ets.ServiceImpl"> 
    <property name="required" value="true" /> 
</bean> 
... 

不好意思問，如果事情是顯而易見的，但我堅持在這幾個小時。有人可以告訴我爲什麼要求是錯誤的，當我期待它是真實的嗎？

編輯：構造函數和方法調用層次結構

編輯： 系統輸出結果：

真正

假

Answer 1

做下面的變化，你的類

public class ServiceImpl { 
    private Boolean required = false; 

    public void doSomething(Collection someList, int someValue) { 
     ... 
     //sysout(required) - prints false (expected to be true...) 
     if(!required) { 
      execute A 
     } else { 
      execute B 
     } 
     ... 
    } 

    public void setRequired(Boolean required){ 
     this.required = required 
     //sysout(required) - prints true 
    } 
} 

也在xml文件中做的是低改

<bean id="service" class="com.ort.ets.ServiceImpl"> 
    <property name="required" value="true" /> 
</bean> 

應該

<bean id="service" class="com.ort.ets.ServiceImpl"> 
    <property name="required"> 
     <value type="java.lang.Boolean">true</value> 
    </property> 
</bean> 

boolean必須更換wtih對象類型的類（java.lang.Boolean）