不推荐使用'java.io.ObjectOutputStream' - Intellij IDEA中的错误 [英] 'java.io.ObjectOutputStream' is deprecated - an error in Intellij IDEA

问题描述

我有这段代码：

  import java.io.FileOutputStream; 
 import java.io.IOException; 
 import java.io.ObjectOutputStream; 
 import java.util.Date; 
 
公共类EmployeeProcessor {
 public static void main（String [] args）{
 Employee employee = new Employee（）; 
 employee.lastName =史密斯; 
 employee.firstName =Adam; 
 employee.id = 123456789; 
 employee.salary = 50000; 
 
 try（FileOutputStream fileOutStr = new FileOutputStream（Employee.ser）; 
 ObjectOutputStream objectOutStr = new ObjectOutputStream（fileOutStr））{
 
 objectOutStr.writeObject（employee ）; 
 System.out.println（员工被外部化到Employee.ser文件中）; 
 
} catch（IOException ioError）{
 ioError.printStackTrace（）; 
} 
} 
} 
  

但在Intellij IDEA ObjectOutputStream class is strikethrough像这样：

对于以这种方式弃用的类，应该采取相反的行动：Deannotate，但它可能不起作用（错误报告）。

要手动修复它，请在目录中找到 annotations.xml 文件在 SDK注释标签中配置并编辑/删除它。

更新：Deannoate操作现在可以正常工作，但仅限于带注释的类本身，而不是来自其引用。

I have this code:

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.util.Date;

public class EmployeeProcessor {
    public static void main(String[] args) {
        Employee employee = new Employee();
        employee.lastName = "Smith";
        employee.firstName = "Adam";
        employee.id = 123456789;
        employee.salary = 50000;

        try(FileOutputStream fileOutStr = new FileOutputStream("Employee.ser");
            ObjectOutputStream objectOutStr = new ObjectOutputStream(fileOutStr)) {

            objectOutStr.writeObject(employee);
            System.out.println("An employee is externalized into the file Employee.ser");

        } catch (IOException ioError){
            ioError.printStackTrace();
        }
    }
}

But in Intellij IDEA ObjectOutputStream class is strikethrough Like this: screenshot. When pointing mouse pointer over - this message appears: 'java.io.ObjectOutputStream' is deprecated. What does it mean?

When I run this code, IntelliJ opens "Edit Configurations" windows asking me to introduce VM options. But I leave it blank and run anyway.

解决方案

IntelliJ IDEA has an intention action to annotate library classes as Deprecated using the External Annotations support. You've probably triggered this intention action by accident.

For the classes deprecated this way there supposed to be the reverse action: Deannotate, but it may not work (bug reported).

To fix it manually, find the annotations.xml file in a directory that is configured in the SDK Annotations tab and edit/remove it.

UPDATE: Deannoate action should work now, but only while inside the annotated class itself, not from its reference.

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