[BUG] JSONPath.eval with String and Object

[Cooper-Zhong]

问题描述

JSONPath.eval 对 string和object结果不一致，感觉是个问题

环境信息

• OS信息： [MacOS 12.7.4 M1 Pro 16 GB]
• JDK信息： [Openjdk 17.0.6]
• 版本信息：[Fastjson2 2.0.50]

重现步骤

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONArray;
import com.alibaba.fastjson2.JSONObject;
import com.alibaba.fastjson2.JSONPath;
import org.junit.jupiter.api.Test;

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

public class Issue1965_757 {
    @Test
    public void testMutant1() {
        JSONObject obj = JSONObject.of("data", JSONArray.of(1));
        String str = JSON.toJSONString(obj);
        System.out.println(str);
        System.out.println(JSONPath.eval(obj, "$.data[0][0]"));
        System.out.println(JSONPath.eval(str, "$.data[0][0]"));
        assertEquals(JSONPath.eval(str, "$.data[0][0]"), JSONPath.eval(obj, "$.data[0][0]"));
    }

    @Test
    public void testMutant2() {
        JSONObject obj = JSONObject.of("data", JSONArray.of(1, 2));
        String str = JSON.toJSONString(obj);
        System.out.println(str);

        System.out.println(JSONPath.eval(obj, "$.data[0][0]"));
        System.out.println(JSONPath.eval(str, "$.data[0][0]"));
        assertEquals(JSONPath.eval(str, "$.data[0][0]"), JSONPath.eval(obj, "$.data[0][0]"));
    }

    @Test
    public void testMutant3() {
        JSONObject obj = JSONObject.of("data", JSONArray.of(JSONObject.of("id", "1")));
        String str = JSON.toJSONString(obj);
        System.out.println(str);
        System.out.println(JSONPath.eval(obj, "$.data[0][0]"));
        System.out.println(JSONPath.eval(str, "$.data[0][0]"));
        assertEquals(JSONPath.eval(str, "$.data[0][0]"), JSONPath.eval(obj, "$.data[0][0]"));
    }


}

相关日志输出

// 1
{"data":[1]}
1
null

org.opentest4j.AssertionFailedError:
Expected :null
Actual :1

// 2
{"data":[1,2]}
1
null

org.opentest4j.AssertionFailedError:
Expected :null
Actual :1

// 3
{"data":[{"id":"1"}]}
1
1

[wenshao]

https://oss.sonatype.org/content/repositories/snapshots/com/alibaba/fastjson2/fastjson2/2.0.51-SNAPSHOT/
问题已修复，请帮忙用2.0.51-SNAPSHOT版本验证

[Cooper-Zhong]

验证已修复，辛苦温少

[wenshao]

https://github.com/alibaba/fastjson2/releases/tag/2.0.51
问题已修复，请用新版本