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Commit 04405bb

Browse files
author
zhangpeng@qlteacher.com
committed
jackson 配置,参考spring
1 parent 66a29d0 commit 04405bb

2 files changed

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‎src/main/java/com/jarvis/cache/serializer/JacksonJsonSerializer.java‎

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package com.jarvis.cache.serializer;
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import java.io.IOException;
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import java.lang.reflect.Array;
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import java.lang.reflect.Method;
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import java.lang.reflect.ParameterizedType;
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import java.util.Map;
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import java.util.Map.Entry;
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import org.springframework.util.StringUtils;
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import com.fasterxml.jackson.annotation.JsonTypeInfo;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.databind.DeserializationFeature;
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import com.fasterxml.jackson.databind.JavaType;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.SerializerProvider;
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import com.fasterxml.jackson.databind.module.SimpleModule;
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import com.fasterxml.jackson.databind.ser.std.StdSerializer;
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import com.jarvis.cache.reflect.generics.ParameterizedTypeImpl;
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import com.jarvis.cache.to.CacheWrapper;
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import com.jarvis.lib.util.BeanUtil;
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public class JacksonJsonSerializer implements ISerializer<Object> {
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private static final ObjectMapper mapper=new ObjectMapper();
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public JacksonJsonSerializer(){
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//mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
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mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
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mapper.registerModule(new SimpleModule().addSerializer(new JacksonJsonSerializer.NullValueSerializer((String)null)));
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mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
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}
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private class NullValueSerializer extends StdSerializer<NullValue> {
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private static final long serialVersionUID = 1999052150548658808L;
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private final String classIdentifier;
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/**
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* @param classIdentifier can be {@literal null} and will be defaulted to {@code @class}.
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*/
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NullValueSerializer(String classIdentifier) {
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super(NullValue.class);
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this.classIdentifier = StringUtils.hasText(classIdentifier) ? classIdentifier : "@class";
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}
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/*
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* (non-Javadoc)
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* @see com.fasterxml.jackson.databind.ser.std.StdSerializer#serialize(java.lang.Object, com.fasterxml.jackson.core.JsonGenerator, com.fasterxml.jackson.databind.SerializerProvider)
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*/
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@Override
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public void serialize(NullValue value, JsonGenerator jgen, SerializerProvider provider)
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throws IOException {
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jgen.writeStartObject();
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jgen.writeStringField(classIdentifier, NullValue.class.getName());
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jgen.writeEndObject();
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}
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}
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@Override
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public byte[] serialize(final Object obj) throws Exception {
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/*
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* Copyright 2002-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//package org.springframework.cache.support;
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package com.jarvis.cache.serializer;
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import java.io.Serializable;
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/**
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* Simple serializable class that serves as a {@code null} replacement
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* for cache stores which otherwise do not support {@code null} values.
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*
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* @author Juergen Hoeller
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* @since 4.2.2
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* @see AbstractValueAdaptingCache
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*/
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public final class NullValue implements Serializable {
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static final Object INSTANCE = new NullValue();
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private static final long serialVersionUID = 1L;
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private NullValue() {
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}
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private Object readResolve() {
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return INSTANCE;
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}
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}

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