java字符串转map

发布时间：2024-11-11 18:04

packagecom.home.app.common.utils;importcom.fasterxml.jackson.annotation.JsonInclude.Include;importcom.fasterxml.jackson.core.JsonProcessingException;importcom.fasterxml.jackson.databind.ObjectMapper;importcom.fasterxml.jackson.databind.SerializationFeature;importjava.lang.reflect.Field;importjava.lang.reflect.Modifier;importjava.util.LinkedHashMap;importjava.util.Map;/***@authorBinary Wang*/

public classJsonUtils {private static final ObjectMapper JSON = newObjectMapper();static{

JSON.setSerializationInclusion(Include.NON_NULL);

JSON.configure(SerializationFeature.INDENT_OUTPUT, Boolean.TRUE);

}public staticString toJson(Object obj) {try{returnJSON.writeValueAsString(obj);

}catch(JsonProcessingException e) {

e.printStackTrace();

}return null;

}/*** Object转Map

*@paramobj

*@return

public static MapgetObjectToMap(Object obj) {

Map map = new LinkedHashMap();

Class> clazz =obj.getClass();

System.out.println(clazz);for(Field field : clazz.getDeclaredFields()) {

field.setAccessible(true);

String fieldName=field.getName();

Object value= null;try{

value=field.get(obj);

}catch(IllegalAccessException e) {

e.printStackTrace();

}if (value == null){

value= "";

}

map.put(fieldName, value);

}returnmap;

}//Map转Object

public static Object getMapToObject(Map map, Class>beanClass) {if (map == null)return null;

Object obj= null;try{

obj=beanClass.newInstance();

}catch(InstantiationException e) {

e.printStackTrace();

}catch(IllegalAccessException e) {

e.printStackTrace();

}

Field[] fields=obj.getClass().getDeclaredFields();for(Field field : fields) {int mod =field.getModifiers();if (Modifier.isStatic(mod) ||Modifier.isFinal(mod)) {continue;

}

field.setAccessible(true);if(map.containsKey(field.getName())) {try{

field.set(obj, map.get(field.getName()));

}catch(IllegalAccessException e) {

e.printStackTrace();

}

}returnobj;

}

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