@JsonIgnore注解的使用 @JsonIgnore注解的使用

@JsonIgnore注解的使用

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                                            <span class="time">2017年07月14日 15:05:51</span>
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            <p><strong>一、jackson的maven依赖</strong></p>

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.5.3</version>
</dependency>
   
   

    
    
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二、实体类的建立

import com.fasterxml.jackson.annotation.JsonIgnore;


public class Person {
    private Integer id;
    private String name;
    @JsonIgnore
    private String hobbies;//兴趣爱好

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

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

    public String getHobbies() {
        return hobbies;
    }

    public void setHobbies(String hobbies) {
        this.hobbies = hobbies;
    }

    @Override
    public String toString() {
        return "Person [id=" + id + ", name=" + name + ", hobbies=" + hobbies + "]";
    }

}
   
   

    
    
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三、测试类代码：

import java.io.IOException;

import com.fasterxml.jackson.databind.ObjectMapper;

public class JSONTest {
    public static void main(String[] args) throws IOException {
        Person p = new Person();
        p.setId(1001);
        p.setName("huangbaokang");
        p.setHobbies("篮球");
        // 未加@JsonIgnore注解时，控制台打印输出{"id":1001,"name":"huangbaokang","hobbies":"篮球"}
        // 加上@JsonIgnore注解时，控制台输出了{"id":1001,"name":"huangbaokang"}，把hobbies的值过滤了。
        System.out.println(new ObjectMapper().writeValueAsString(p));
    }
}
   
   

    
    
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