以编程方式将值传递给spring bean？ [英] Passing values to spring bean programmatically?

问题描述

我有春天豆。

public class Employee2 {

  private int id;
  private String name;
  private double salary;


  public Employee2(int id, String name, double salary) {
    this.id = id;
    this.name = name;
    this.salary = salary;
  }

 // some logic to call database using above values

}

现在我在spring配置文件中有以下配置。

Now i have below config in spring configuration file.

<bean id="emp2" class="com.basic.Employee2">
            <constructor-arg name="id" value="" />
            <constructor-arg name="name" value="" />
            <constructor-arg name="salary" value="" />
</bean>

现在我无法对上面配置中的值进行硬编码，因为它们是动态的。

Now i cannot hard code the values in above config since they are dynamic.

现在我使用下面的代码以编程方式获取spring bean。

Now i am getting spring bean programmatically using below code.

Employee2 emp = (Employee2)applicationContext.getBean("emp2");

现在如何将值传递给Employee2构造函数？

谢谢！

推荐答案

进行bean查找时。使用varargs getBean方法代替将参数发送给构造函数。

When you do the bean lookup. Use the varargs getBean method instead to send in arguments to the constructor.

所以尝试这样的事情：

Employee2 emp = (Employee2)applicationContext.getBean("emp2", "someid", "somename", "somesalaray");

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