javascript 序列化对象时，如何强制杰克逊将数字写为字符串
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How can I force Hymanson to write numbers as strings when serializing my objects
提问by testing123
I have an id that is pretty large on one of my java objects. When it Hymanson converts it to JSON it sends it down as a number (e.g. {"id":1000110040000000001}) but as soon as it becomes a javascript object the id gets changed to 1000110040000000000. I read about this issue here
我的一个 java 对象上有一个非常大的 id。当 Hymanson 将其转换为 JSON 时，它会将其作为数字发送（例如 {"id":1000110040000000001}），但一旦它成为 javascript 对象，id 就会更改为 1000110040000000000。我在这里阅读了有关此问题的信息
It works fine when the id is smaller. My first thought is to just force Hymanson to convert all the numbers to strings but I am open to other options as well. If possible I would prefer not to add Hymanson annotations to my java objects.
当 id 较小时它工作正常。我的第一个想法是强迫Hyman逊将所有数字转换为字符串，但我也愿意接受其他选择。如果可能的话，我不想将 Hymanson 注释添加到我的 java 对象中。
回答by testing123
Hymanson-databind (at least 2.1.3) provides special ToStringSerializer. That did it for me.
Hymanson-databind（至少 2.1.3）提供了特殊的 ToStringSerializer。那是为我做的。
@Id @JsonSerialize(using = ToStringSerializer.class)
private Long id;
回答by user770119
com.fasterxml.Hymanson.core:Hymanson-core:2.5.4provides
JsonGenerator.Feature.WRITE_NUMBERS_AS_STRINGS for ObjectMapperconfiguration.
com.fasterxml.Hymanson.core:Hymanson-core:2.5.4提供 JsonGenerator.Feature.WRITE_NUMBERS_AS_STRINGS 进行ObjectMapper配置。
final ObjectMapper objectMapper = new ObjectMapper();
objectMapper.configure(JsonGenerator.Feature.WRITE_NUMBERS_AS_STRINGS, true);
Foo foo = new Foo(10);
System.out.println("Output: " + objectMapper.writeValueAsString(foo));
Output: {"a":"1"}
输出：{"a":"1"}
class Foo {
@XmlElement(name = "a")
Integer a
}
To include the dependency:
要包含依赖项：
<dependency>
<groupId>com.fasterxml.Hymanson.core</groupId>
<artifactId>Hymanson-core</artifactId>
<version>2.7.2</version>
</dependency>
