第 5 章 Spring Data

			
	@JsonIgnore
	private String entityName = this.getClass().getSimpleName();	
			
		

		
package cn.netkiller.json;

public class Member {
	private String name;

	public Member() {
		// TODO Auto-generated constructor stub
	}

	public Member(String name) {
		// TODO Auto-generated constructor stub
		this.name = name;

	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "Member [name=" + name + "]";
	}

}
		
		
		

		
package cn.netkiller.json;

import java.io.IOException;

import org.springframework.boot.jackson.JsonComponent;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.TreeNode;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.node.TextNode;

@JsonComponent
public class Json {

	public Json() {
		// TODO Auto-generated constructor stub
	}

	public static class MemberJsonSerializer extends JsonSerializer<Member> {

		@Override
		public void serialize(Member value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
			// TODO Auto-generated method stub
			gen.writeStartObject();
			gen.writeStringField("member", value.toString());
			gen.writeEndObject();

		}
	}

	public static class MemberJsonDeserializer extends JsonDeserializer<Member> {

		@Override
		public Member deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
			// TODO Auto-generated method stub
			TreeNode treeNode = p.getCodec().readTree(p);
			TextNode member = (TextNode) treeNode.get("member");
			return new Member(member.asText());
		}
	}
}		
		
		

		
package cn.netkiller.json.controller;

import cn.netkiller.json.Member;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 *
 * @author neo
 */
@RestController
public class SimpleController {

	@Autowired
	public ObjectMapper objectMapper;

	@GetMapping("/")
	public String home() throws JsonMappingException, JsonProcessingException {
		String json = "{\"name\":\"netkiller\"}";
		Member member = objectMapper.readValue(json, Member.class);
		System.out.println(member.getName());
		return member.getName();
	}

}