@JsonView是已经支持在杰克逊JSON处理器从V1.4开始。
新增编辑:已 针对Jackson 1.9.12更新
根据v1.8.4
文档,我
writevalueUsingView现在
使用 的函数已被 弃用, 请改用ObjectMapper.viewWriter(java.lang.Class) …但是 从1.9
开始也已 弃用 ,请改用writerWithView(Class) !(请参阅v1.9.9
文档)
因此,这是一个更新的示例,已在Spring 3.2.0和Jackson 1.9.12中进行了测试,由于使用,它们只是返回
{id:1}而不是扩展。切换到会导致{name:"name"}``.writerWithView(Views.Public.class)``Views.ExtendPublic.class``{"id":1,"name":"name"}package com.demo.app;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import org.prehaus.jackson.map.annotate.JsonView;import org.prehaus.jackson.map.ObjectMapper;import org.prehaus.jackson.map.ObjectWriter;import javax.servlet.http.HttpServletResponse;import java.io.IOException;@Controllerpublic class DemoController { private final ObjectMapper objectMapper = new ObjectMapper(); @RequestMapping(value="/jsonOutput") @ResponseBody public String myObject(HttpServletResponse response) throws IOException { ObjectWriter objectWriter = objectMapper.writerWithView(Views.Public.class); return objectWriter.writevalueAsString(new MyObject()); } public static class Views { static class Public {} static class ExtendPublic extends Public {} } public class MyObject { @JsonView(Views.Public.class) Integer id = 1; @JsonView(Views.ExtendPublic.class) String name = "name"; }}上一页编辑:
您需要实例化
ObjectMapper和使用自定义视图,如图写出来的物体在这里,或在这个例子:
定义视图:
class Views { static class Public {} static class ExtendedPublic extends PublicView {} ...}public class Thing { @JsonView(Views.Public.class) Integer id; @JsonView(Views.ExtendPublic.class) String name;}使用视图:
private final ObjectMapper objectMapper = new ObjectMapper();@RequestMapping(value = "/thing/{id}")public void getThing(@PathVariable final String id, HttpServletResponse response) { Thing thing = new Thing(); objectMapper.writevalueUsingView(response.getWriter(), thing, Views.ExtendPublic.class);}如果您使用Jackson> =
1.7,则可能会发现
@JSONFilter更适合您的需求。



