Java 如何通过自定义Struts类型转换器转换列表项的字段？

我需要对

Company

和

Employee

类中的

ID

字段执行自定义转换。我已经实现了从

StrutsTypeConverter

扩展而来的自定义转换器，它成功地用于转换

公司.ID

字段，但它不适用于

员工.ID

似乎主要问题在于转换属性文件中。如何在转换属性文件中为员工ID字段指定转换器类

MyAction转换。属性

：

company.id = com.struts2.convertors.MyCustomConverter
company.??????.id = com.struts2.convertors.MyCustomConverter

public class MyAction extends ActionSupport {

    private Company company;

    public Company getCompany () {
        return company;
    }
    public void setCompany (Company company) {
        this.company= company;
    }
    @Override
    public String execute() {
        return SUCCESS;
    }
}

public class Company {

    private ID id;

    private List<Employee> employees;

    // getters and setters
}

MyAction

：

company.id = com.struts2.convertors.MyCustomConverter
company.??????.id = com.struts2.convertors.MyCustomConverter

public class MyAction extends ActionSupport {

    private Company company;

    public Company getCompany () {
        return company;
    }
    public void setCompany (Company company) {
        this.company= company;
    }
    @Override
    public String execute() {
        return SUCCESS;
    }
}

public class Company {

    private ID id;

    private List<Employee> employees;

    // getters and setters
}

公司

：

company.id = com.struts2.convertors.MyCustomConverter
company.??????.id = com.struts2.convertors.MyCustomConverter

public class MyAction extends ActionSupport {

    private Company company;

    public Company getCompany () {
        return company;
    }
    public void setCompany (Company company) {
        this.company= company;
    }
    @Override
    public String execute() {
        return SUCCESS;
    }
}

public class Company {

    private ID id;

    private List<Employee> employees;

    // getters and setters
}

：

company.id = com.struts2.convertors.MyCustomConverter
company.??????.id = com.struts2.convertors.MyCustomConverter

public class MyAction extends ActionSupport {

    private Company company;

    public Company getCompany () {
        return company;
    }
    public void setCompany (Company company) {
        this.company= company;
    }
    @Override
    public String execute() {
        return SUCCESS;
    }
}

public class Company {

    private ID id;

    private List<Employee> employees;

    // getters and setters
}

此注释用于类和应用程序范围的转换规则

TypeConversion注释可以应用于属性和方法级别

 @TypeConversion(converter = “com.test.struts2.MyConverter”)
 public void setAmount(String amount) 
 {
    this.amount = amount;
 }

---

此注释指定我的一个转换器的位置。实际上，通过使用此注释，我将我的类com.test.struts2.MyConverter注册为转换器，并在每次调用setAmount（String amount）方法时执行。

通过向

xwork conversion.properties

文件中添加

ID

类型的转换器，尝试以下操作

com.struts2.ID = com.struts2.convertors.MyCustomConverter