Question

我正在尝试从Jackson 2.3升级到Jackson 2.7，似乎@JsonIgnore（Include.NON_DEFAULT）行为已经改变。使用以下代码

package jackson;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.databind.ObjectMapper;

public class Test {
    public static void main (String args[]) throws Exception {
        MyClass foo = new MyClass();
        ObjectMapper mapper = new ObjectMapper();
        System.out.println(mapper.writeValueAsString(foo));
    }

    public static enum MyEnum { A, B, C };

    public static class MyClass {
        public String name = "John";

        @JsonInclude(Include.NON_DEFAULT) 
        public MyEnum myEnum = MyEnum.A;
    }
}

我使用2.7：

获得此输出

{"name":"John","myEnum":"A"}

以及使用2.3：

{"name":"John"}

如何使用2.7版复制2.3中的行为？

Answer 1

根据我为此提出的the bug ticket，它按预期工作，并且可以通过将您的类结构化来实现功能：

#RewriteEngine On 
#RewriteCond %{HTTP_HOST} !^myurl.com$
#RewriteRule ^(.*)$ http://myurl.com/$1 [R=301,L]
#RewriteCond %{SERVER_PORT} 80 
#RewriteRule ^(.*)$ https://myurl.com/$1 [R,L]
RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule .* https://myurl.com%{REQUEST_URI} [R=301,L]
RewriteCond %{REQUEST_FILENAME}.html -f
RewriteRule !.*\.html$ %{REQUEST_FILENAME}.html [L]
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

请参阅故障单以获取作者的更全面解释。

Jackson Included.NON_DEFAULT在2.7.0中无效

1 个答案: