.size());
for (int i=0; i< expectedList.size(); i++) {
assertEquals(expectedList.get(i), actualList.get(i));
}
}
public void fail(String message) {
Assert.fail(message);
}
}
package zzz.study.utils;
import org.codehaus.jackson.map.DeserializationConfig;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.map.annotate.JsonSerialize;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.Map;
public class JsonUtil {
private static final ObjectMapper MAPPER = new ObjectMapper();
static {
// 为保持对象版本兼容性,忽略未知的属性
MAPPER.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
// 序列化的时候，跳过null值
MAPPER.getSerializationConfig().setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);
// date类型转化
SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
MAPPER.setDateFormat(fmt);
}
/**
* 将一个json字符串解码为java对象
*
* 注意：如果传入的字符串为null，那么返回的对象也为null
*
* @param json json字符串
* @param cls 对象类型
* @return 解析后的java对象
* @throws RuntimeException 若解析json过程中发生了异常
*/
public static <T> T toObject(String json, Class<T> cls) {
if (json == null) {
return null;
}
try {
return MAPPER.readValue(json, cls);
} catch (Exception e) {
return null;
}
}
/**
* 读取JSON字符串为MAP
*/
@SuppressWarnings("unchecked")
public static Map<String, Object> readMap(String json) {
return toObject(json, HashMap.class);
}
}