Could not read document: Unrecognized field "***" 解决方案！

org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver.handleHttpMessageNotReadable Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Unrecognized field "age1" (class com.byd.shop.entity.User), not marked as ignorable (4 known properties: "id", "sex", "age", "name"])

1、原因分析

实体类中不存在post提交的age1，从而程序抛出异常。

2、在实体类添加  @JsonIgnoreProperties(ignoreUnknown = true)

3、springweb.xml添加

<mvc:annotation-driven>
    <mvc:message-converters register-defaults="true">
        <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
            <property name="objectMapper">
                <bean class="com.fasterxml.jackson.databind.ObjectMapper">
                    <!-- 处理responseBody 里面日期类型 -->
                    <property name="dateFormat">
                        <bean class="java.text.SimpleDateFormat">
                            <constructor-arg type="java.lang.String" value="yyyy-MM-dd HH:mm:ss"/>
                        </bean>
                    </property>
                    <!-- 为null字段时不显示 -->
                    <property name="serializationInclusion">
                        <value type="com.fasterxml.jackson.annotation.JsonInclude.Include">NON_NULL</value>
                        <!--//将该标记放在属性上，如果该属性为NULL则不参与序列化-->
                        <!--//如果放在类上边,那对这个类的全部属性起作用-->
                        <!--//Include.Include.ALWAYS 默认-->
                        <!--//Include.NON_DEFAULT 属性为默认值不序列化-->
                        <!--//Include.NON_EMPTY 属性为 空（“”） 或者为 NULL 都不序列化-->
                        <!--//Include.NON_NULL 属性为NULL 不序列化-->
                    </property>
                </bean>
            </property>
        </bean>
    </mvc:message-converters>
</mvc:annotation-driven>

4、重启即可。