Java SOJO CSV 序列化
我正在尝试使用 SOJO 将 Java 对象序列化为 CSV。该示例看起来非常简单：
Car car = new Car("My Car");
car.setDescription("This is my car.");
Serializer csvSerializer = new CsvSerializer();
String csvStr = (String) csvSerializer.serialize(car);
System.out.println(csvStr);
// print:
// description,build,properties,name,~unique-id~,class
// This is my car.,,,My Car,0,test.net.sf.sojo.model.Car
我尝试实现我自己的示例版本。我制作了一个非常简单的 Car 类，其中包含两个 String 字段（build 和 description），它实现了 setDescription(..) 方法。
这就是我实现的：
import net.sf.sojo.interchange.csv.CsvSerializer;
public class Main {
private class Car
{
private String build;
private String description;
public Car(String build) {
this.build = build;
this.description = null;
}
public void setDescription(String description) {
this.description = description;
}
}
public static void main(String[] args) {
Main m = new Main();
Car car = m.new Car("My Car");
car.setDescription("This is my car.");
CsvSerializer csvSerializer = new CsvSerializer();
String csvStr = (String) csvSerializer.serialize(car);
System.out.println(csvStr);
}
}
但是，当我运行我的实现时，我得到以下输出：
~unique-id~,class,description
0,Main$Car,
我不明白为什么在我的实现中 build 或 description 字段都没有被序列化，你能帮忙吗？
干杯，
皮特
I am trying to use SOJO to serialize a Java object to CSV. The example looks pretty straight forward:
Car car = new Car("My Car");
car.setDescription("This is my car.");
Serializer csvSerializer = new CsvSerializer();
String csvStr = (String) csvSerializer.serialize(car);
System.out.println(csvStr);
// print:
// description,build,properties,name,~unique-id~,class
// This is my car.,,,My Car,0,test.net.sf.sojo.model.Car
I tried implementing my own version of the example. I made a really simple Car class with two String fields (build and description) which implements a setDescription(..) method.
This is what I implemented:
import net.sf.sojo.interchange.csv.CsvSerializer;
public class Main {
private class Car
{
private String build;
private String description;
public Car(String build) {
this.build = build;
this.description = null;
}
public void setDescription(String description) {
this.description = description;
}
}
public static void main(String[] args) {
Main m = new Main();
Car car = m.new Car("My Car");
car.setDescription("This is my car.");
CsvSerializer csvSerializer = new CsvSerializer();
String csvStr = (String) csvSerializer.serialize(car);
System.out.println(csvStr);
}
}
However, when I run my implementation I get the following output:
~unique-id~,class,description
0,Main$Car,
I don't understand why in my implementation neither the build or description fields are serialized, can you help?
Cheers,
Pete
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从 SOJO 主页：“这个项目的目的是一个 Java 框架，以简化的表示形式转换 JavaBeans”
您的示例中的 Car 对象不符合条件。对于您希望 SOJO 写入（或读取）文件的每个属性，您必须有一个 getter（可能还有一个 setter）。添加 getBuild() 和 getDescription()
From the SOJO home page: "The intention for this project is a Java framework, that convert JavaBeans in a simplified representation"
The Car object in your example does not qualify. You must have a getter (and, probabaly, a setter as well) for every property that you wish SOJO to write to (or read from) your file. Add getBuild() and getDescription()
我没有使用过 SOJO，但是对于私有字段，您可能需要 getter 方法；或者您可以尝试将这些字段声明为公共。
I haven't used SOJO, but for private fields you probably need getter methods; or you could try declaring the fields public.