序列化 深拷贝

[ioplmk]

可否增加一个 api ，使用 fastjson 序列化 进行深拷贝

[wenshao]

https://oss.sonatype.org/content/repositories/snapshots/com/alibaba/fastjson2/fastjson2/2.0.12-SNAPSHOT/
已经支持，请帮忙用2.0.12-SNAPSHOT版本验证，2.0.12版本预计在8月21日前发布

新的JSON#copy方法使用方法如下：

import com.alibaba.fastjson2_vo.Int2;
import org.junit.jupiter.api.Test;

import java.math.BigDecimal;
import java.util.Collections;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class CopyTest {
    @Test
    public void test() {
        Object[] values = new Object[]{JSONObject.of(), JSONArray.of(1, 2, 3), 1, 1.0, BigDecimal.ONE, null, 101L, "abc", Collections.emptyList()};
        for (Object value : values) {
            Object copy = JSON.copy(value);
            assertEquals(value, copy);
        }
    }

    @Test
    public void test0() {
        Int2 value = new Int2();
        value.setV0000(1001);
        value.setV0001(1002);

        Int2 copy = JSON.copy(value);

        assertEquals(value.getV0000(), copy.getV0000());
        assertEquals(value.getV0001(), copy.getV0001());
    }

    @Test
    public void test1() {
        Bean1 bean = new Bean1();
        bean.v0 = 1001;
        bean.v1 = 1002;

        Bean1 copy = JSON.copy(bean, JSONWriter.Feature.FieldBased);

        assertEquals(bean.v0, copy.v0);
        assertEquals(bean.v1, copy.v1);

        Bean1 copy2 = JSON.copy(bean, JSONWriter.Feature.FieldBased, JSONWriter.Feature.BeanToArray);
        assertEquals(bean.v0, copy2.v0);
        assertEquals(bean.v1, copy2.v1);
    }

    @Test
    public void test2() {
        Bean1 bean = new Bean1();
        bean.v0 = 1001;
        bean.v1 = 1002;
        JSONArray array = JSONArray.of(bean);

        JSONArray copy = JSON.copy(array, JSONWriter.Feature.FieldBased);
        Bean1 bean1 = (Bean1) copy.get(0);
        assertEquals(bean.v0, bean1.v0);
        assertEquals(bean.v1, bean1.v1);

        JSONArray copy2 = JSON.copy(array, JSONWriter.Feature.FieldBased, JSONWriter.Feature.BeanToArray);
        Bean1 bean2 = (Bean1) copy2.get(0);
        assertEquals(bean.v0, bean2.v0);
        assertEquals(bean.v1, bean2.v1);
    }

    public static class Bean1 {
        private int v0;
        private int v1;
    }
}

[ioplmk]

import com.alibaba.fastjson2.*;
import java.io.*;
import java.math.*;
import java.util.*;


public class SimpleTest
  {
    
    public static void main( String[] args )
      {
        TestBean testBean = new TestBean();
        testBean.settCode( "zsdqjdbdd" );
        testBean.setNum( 1 );
        Set<String> set = new HashSet<>();
        set.add( "111" );
        set.add( "222" );
        set.add( "333" );
        testBean.setStringSet( set );
        testBean.setBigDecimal( new BigDecimal( 1 ) );
        TestBean copy = JSON.copy( testBean );
        boolean equal = testBean == copy;
        System.err.println( equal );
      }
    
  }


class TestBean implements Serializable
  {
    
    private static final long serialVersionUID = - 3928832861296252415L;
    
    private String tCode;
    
    private int num;
    
    private Set<String> stringSet;
    
    private BigDecimal bigDecimal;
    
    public String gettCode()
      {
        return tCode;
      }
    
    public void settCode( String tCode )
      {
        this.tCode = tCode;
      }
    
    public int getNum()
      {
        return num;
      }
    
    public void setNum( int num )
      {
        this.num = num;
      }
    
    public Set<String> getStringSet()
      {
        return stringSet;
      }
    
    public void setStringSet( Set<String> stringSet )
      {
        this.stringSet = stringSet;
      }
    
    public BigDecimal getBigDecimal()
      {
        return bigDecimal;
      }
    
    public void setBigDecimal( BigDecimal bigDecimal )
      {
        this.bigDecimal = bigDecimal;
      }
    
  }

你好，我在测试的时候发现抛了异常，断点显示在 为 Set 集合赋值的时候出现了问题

[wenshao]

https://oss.sonatype.org/content/repositories/snapshots/com/alibaba/fastjson2/fastjson2/2.0.12-SNAPSHOT/
问题已修复，请更新到最新2.0.12-SNAPSHOT版本帮忙验证，2.0.12版本预计在8月21日前发布

[ioplmk]

目前没啥问题了

[wenshao]

https://github.com/alibaba/fastjson2/releases/tag/2.0.12
请用新版本