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[英]Lombok @Value annotation not generating @ConstructorProperties in Eclipse
[英]ConstructorProperties annotation does not work
我正在嘗試使用基於構造函數的依賴項注入來獲取bean實例。 但是它總是拋出org.springframework.beans.factory.UnsatisfiedDependencyException 。
錯誤消息:在類路徑資源[bean.xml]中定義名稱為'bean1'的bean創建時出錯:通過索引類型為[java.lang.String]的構造函數參數表示的不滿意依賴性:構造函數參數類型不明確-您是否指定了正確的bean引用作為構造函數參數?
以下是我的簡單代碼:
Bean1.java
package com.example.bean
import java.beans.ConstructorProperties;
public class Bean1 {
private int years;
private String ultimateAnswer;
@ConstructorProperties({"years", "ultimateAnswer"})
public Bean1(int years, String ultimateAnswer) {
this.years = years;
this.ultimateAnswer = ultimateAnswer;
}
public int getYears() {
return years;
}
public void setYears(int years) {
this.years = years;
}
public String getUltimateAnswer() {
return ultimateAnswer;
}
public void setUltimateAnswer(String ultimateAnswer) {
this.ultimateAnswer = ultimateAnswer;
}
public void print() {
System.out.println("years:" + years + ", ultimateAnswer:" + ultimateAnswer);
}
}
TestApp.java
package com.example.app;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.example.bean.Bean1;
public class TestApp {
@SuppressWarnings("resource")
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"bean.xml"});
Bean1 bean1 = context.getBean("bean1",Bean1.class);
bean1.print();
}
}
bean.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.xsd">
<bean id="bean1" class="com.example.bean.Bean1">
<constructor-arg name="years" value="7500000"/>
<constructor-arg name="ultimateanswer" value="42"/>
</bean>
</beans>
任何人都可以幫助找出問題所在嗎? 提前致謝!
輕微錯字:-),應該是ultimateAnswer
在你的XML,而不是ultimateanswer
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