import com.baomidou.mybatisplus.core.toolkit.StringUtils;
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import com.fasterxml.jackson.annotation.JsonFormat;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import lombok.extern.slf4j.Slf4j;
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import org.junit.jupiter.api.Test;
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import java.util.HashMap;
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import java.util.Map;
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@Slf4j
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public class Jackson2Test {
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@Test
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public void testMap() throws JsonProcessingException {
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ObjectMapper mapper = new ObjectMapper();
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//mapper.setPropertyNamingStrategy(com.fasterxml.jackson.databind.PropertyNamingStrategy.SNAKE_CASE);
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//mapper.configOverride(Map.Entry.class).setFormat(JsonFormat.Value.forShape(JsonFormat.Shape.OBJECT));
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mapper.configOverride(Map.Entry.class).setFormat(JsonFormat.Value.forShape(JsonFormat.Shape.STRING));
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Map<String, Object> res = new HashMap<>();
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res.put("username", "pedro");
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res.put("userAge", 24);
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String s = mapper.writeValueAsString(res);
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log.info(s);
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}
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@Test
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public void testCamel() throws JsonProcessingException {
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String str = "userAge";
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String s = StringUtils.camelToUnderline(str);
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log.info(s);
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}
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}
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