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我为com.google.common.collect.Table类编写了自定义串行器和解串器。但是在MongoDB中持久化这个对象的时候并没有被调用。我使用Spring 4,Spring-MongoDB 1.9和Jackson 2.8.4。以下是课程和配置。你能不能让我知道这有什么问题。我希望这些类在从MongoDB持久化和检索时被调用。Spring JSON串行器和解串器没有被调用
public class TableSeserializer extends StdSerializer<Table> {
/**
*
*/
private static final long serialVersionUID = 1L;
public TableSeserializer() {
this(Table.class);
}
public TableSeserializer(Class<Table> t) {
super(t);
}
@SuppressWarnings("unchecked")
@Override
public void serialize(Table value, JsonGenerator gen, SerializerProvider provider)
throws IOException {
gen.writeStartObject();
value.rowMap().forEach((i,map) ->{
try {
gen.writeNumber((int)i);
((Map)map).forEach((k,v)->{
try {
gen.writeStartObject();
Object object = ((Map)map).get(k);
if (object instanceof HTMLInputTag) {
HTMLInputTag inputTag = (HTMLInputTag) object;
gen.writeObjectField(inputTag.getId(),inputTag);
}else{
gen.writeObjectField(object.toString(),object);
}
gen.writeEndObject();
} catch (IOException e) {
e.printStackTrace();
}
});
} catch (IOException e) {
e.printStackTrace();
}
});
gen.writeEndObject();
}
}
public class TableDeserializer extends StdDeserializer<Table<Integer, String, HTMLInputTag>> {
/**
*
*/
private static final long serialVersionUID = 1L;
protected TableDeserializer(Class<?> vc) {
super(vc);
}
public TableDeserializer() {
this(null);
}
@Override
public Table<Integer, String, HTMLInputTag> deserialize(JsonParser jsonparser, DeserializationContext ctxt)
throws IOException, JsonProcessingException {
String data = jsonparser.getText();
ObjectMapper mapper = new ObjectMapper();
JsonNode node = mapper.readTree(data);
return null;
}
}
Spring配置类
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
SimpleModule module = new SimpleModule();
module.addSerializer(Table.class, new TableSeserializer());
module.addDeserializer(Table.class, new TableDeserializer());
Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder().modules(module);
converters.add(jacksonConverter(builder));
}
@Bean
MappingJackson2HttpMessageConverter jacksonConverter(Jackson2ObjectMapperBuilder builder) {
return new MappingJackson2HttpMessageConverter(builder.build());
}
注释
public class OrganizationAttributeMetaData extends CommonDomainAttributes implements Cloneable, Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
private String attributeName;
private int orgid;
private String uniquecode; //3 Character unique code to uniquely identify
@JsonDeserialize(using=TableDeserializer.class)
@JsonSerialize(using=TableSeserializer.class)
Table<Integer, String, HTMLInputTag> htmlAttributes = null; //row,identifier and HTML
}
Spring mongo db使用mongo db的序列化/反序列化。您需要将这些Jackson串行器/解串器转换为弹簧转换器,并使用mongo映射转换器进行注册。 – Veeram