How do I get JSON using JsonPath in Java?
I want to get value from JSON object using JsonPath. Can someone please suggest me the appropriate jars that I will need, because according to my knowledge, I am getting this exception for the jars I am using for jsonpath.
package jsonPg;
import java.io.IOException;
import org.json.JSONException;
import org.json.JSONObject;
import com.jayway.jsonpath.JsonPath;
public class ReadJsonPath {
static String file = "D:\\AutomationSample\\Sample_Json.txt";
public static void main(String[] args) throws JSONException, IOException {
JsonReadFile jsonReadFile=new JsonReadFile();
JSONObject jsonObj=jsonReadFile.parseJSONFile(file);
String jsonObject=jsonObj.toString();
String json="";
System.out.println(jsonObject);
// Object val = JsonPath.read(jsonObject,"");
String val1=JsonPath.read(jsonObject," $.payload[*].supplierDataMap[*].COMPANYDETAILS.customFieldList[*].DISPLAYGSID .value");
System.out.println(val1);
}
}
here is the code i wrote and below is the exception thrown at runtime
Exception in thread "main" java.lang.NoSuchFieldError: FACTORY_SIMPLE
at com.jayway.jsonpath.spi.impl.JsonSmartJsonProvider.<init>(JsonSmartJsonProvider.java:38)
at com.jayway.jsonpath.spi.impl.JsonSmartJsonProvider.<init>(JsonSmartJsonProvider.java:41)
at com.jayway.jsonpath.spi.JsonProviderFactory.<clinit> (JsonProviderFactory.java:24)
at com.jayway.jsonpath.Configuration.defaultConfiguration(Configuration.java:62)
at com.jayway.jsonpath.internal.JsonReader.<init>(JsonReader.java:26)
at com.jayway.jsonpath.JsonPath.read(JsonPath.java:462)
at jsonPg.ReadJsonPath.main(ReadJsonPath.java:27)`
Any help would be greatly appreciated. Thanks in advance.
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2 answers
You can achieve your goal with the library JsonPath
yourself. Here's an example:
String jsonString = "{ \"list\": [ { \"name\": \"foo1\"}, { \"name\": \"foo2\"} ]}";
DocumentContext docCtx = JsonPath.parse(jsonString);
JsonPath jsonPath = JsonPath.compile("$.list[?(@.name == \"foo1\")]");
JSONArray val1=docCtx.read(jsonPath);
System.out.println(val1);
This code will be printed:
[{"name":"foo1"}]
Required maven dependency:
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<version>2.2.0</version>
</dependency>
json-path
will also automatically pull the json-smart
JAR:
<dependency>
<groupId>net.minidev</groupId>
<artifactId>json-smart</artifactId>
<version>2.2.1</version>
</dependency>
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