[Spring] - 動態設置properties

Spring的jar包用來做動態properties的getter/setter賦值方法：

1：需要的jar包：

spring-beans-3.2.0.RC2.jar

commons-logging-1.2.jar

spring-core-3.2.0.RC2.jar

 

2：測試：

Java bean:

package com.bean;

public class Company {
    
    private long id;
    private String name;
    
    public long getId() {
        return id;
    }
    public void setId(long id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }

}

測試：

import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;

import com.bean.Company;;


public class Test {

    /**
     * @param args
     */
    public static void main(String[] args) throws Exception {
        BeanWrapper bean = new BeanWrapperImpl(new Company());
        bean.setPropertyValue("name", "my test company");
        
        String companyName = bean.getPropertyValue("name").toString();
        System.out.println(companyName);
    }
    
}

 

輸出：

my test company

---

 

參見使用引用:

BeanWrapper company = BeanWrapperImpl(new Company());
// setting the company name..
company.setPropertyValue("name", "Some Company Inc.");
// ... can also be done like this:
PropertyValue value = new PropertyValue("name", "Some Company Inc.");
company.setPropertyValue(value);

// ok, let's create the director and tie it to the company:
BeanWrapper jim = BeanWrapperImpl(new Employee());
jim.setPropertyValue("name", "Jim Stravinsky");
company.setPropertyValue("managingDirector", jim.getWrappedInstance());

// retrieving the salary of the managingDirector through the company
Float salary = (Float) company.getPropertyValue("managingDirector.salary");

地址:http://docs.spring.io/spring/docs/current/spring-framework-reference/html/validation.html