1.json數據格式
所需jar包
fastjson-1.2.47.jar
jackson-annotations-2.9.2.jar
jackson-core-2.9.2.jar
jackson-databind-2.9.2.jar
(1)配置spring-mvc.xml
<mvc:annotation-driven >
<mvc:message-converters register-defaults="true">
<bean class="
com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
<value>application/json</value>
<value>application/xml;charset=UTF-8</value>
</list>
</property>
<property name="features">
<list>
<!-- 默認的意思就是不配置這個屬性,配置了就不是默認了 -->
<!-- 是否輸出值爲null的字段 ,默認是false -->
<value>WriteMapNullValue</value>
<value>WriteNullNumberAsZero</value>
<value>WriteNullListAsEmpty</value>
<value>WriteNullStringAsEmpty</value>
<value>WriteNullBooleanAsFalse</value>
<value>WriteDateUseDateFormat</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
(2)測試
@RequestMapping(value="json")
@ResponseBody()
//json數據
public Map<String,Object> Json()
{
List<PersonBO> persons = new ArrayList<PersonBO>();
PersonBO person = new PersonBO();
person.setPid("1111");
person.setName("1111");
person.setBirthday(new Date());
persons.add(person);
person = new PersonBO();
person.setPid("2222");
person.setName("2222");
person.setBirthday(new Date());
persons.add(person);
Map<String,Object> map = new HashMap<String,Object>();
map.put("persons", persons);
return map;
}