Object类型数据转化为json字符串工具类

Object类型数据转json字符串

package com.xxxxx.emis.base.util;

import com.fasterxml.jackson.annotation.JsonFilter;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ser.impl.SimpleBeanPropertyFilter;
import com.fasterxml.jackson.databind.ser.impl.SimpleFilterProvider;

/**
 * @author Q
 * @Date 2021/4/19 16:54
 */
 
public class JsonFilterSerializer {
    private static final String DYNC_INCLUDE = "DYNC_INCLUDE";//包含的标识
    private static final String DYNC_EXCLUDE = "DYNC_EXCLUDE";//过滤的标识

    private ObjectMapper mapper = new ObjectMapper();

    @JsonFilter(DYNC_EXCLUDE)
    interface DynamicExclude {
    }

    @JsonFilter(DYNC_INCLUDE)
    interface DynamicInclude {
    }

    /**
     *
     * @param include 包含
     * @param exclude 过滤
     */
    public void filter(Class<?> clazz, String include, String exclude) {
        if (clazz == null) return;
        if (include != null && include.length() > 0) {
            mapper.setFilterProvider(new SimpleFilterProvider()
                    .addFilter(DYNC_INCLUDE, SimpleBeanPropertyFilter.filterOutAllExcept(include.split(","))));//多个字段用,分割开
            mapper.addMixIn(clazz, DynamicInclude.class);
        } else if (exclude != null && exclude.length() > 0) {
            mapper.setFilterProvider(new SimpleFilterProvider()
                    .addFilter(DYNC_EXCLUDE, SimpleBeanPropertyFilter.serializeAllExcept(exclude.split(","))));
            mapper.addMixIn(clazz, DynamicExclude.class);
        }
    }

    public String toJson(Object object) throws JsonProcessingException {
        return mapper.writeValueAsString(object);
    }
}