Question

这是我的ajax请求

var dataModel = {name1:"value1", name2:"value2"};

$.ajax({
              url: "/testURL",
              type: "POST",
              async: false,
              contentType: "application/json",
              data: dataModel,
              success: function(response) {

              }

    })

这是我在spring xml

中的相关摘录

<annotation-driven>
        <!-- Message converters are added to use custom object mapper in  MappingJackson2HttpMessageConverter.
            StringHttpMessageConverter is required to avoid MappingJackson2HttpMessageConverter from converting a string into json.
        -->
        <message-converters>
            <beans:bean
                class="org.springframework.http.converter.StringHttpMessageConverter">
            </beans:bean>
            <beans:bean
                class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
                <beans:property name="objectMapper" ref="jacksonObjectMapper"/>
            </beans:bean>
        </message-converters>
    </annotation-driven>

这是我的控制器映射

    @RequestMapping(value = "/testURL", method = { RequestMethod.POST })
    public String add(HttpServletRequest request, @RequestBody CustomObject customObject) throws Exception {}

但我的要求甚至没有达到控制器。一旦我删除@RequestBody CustomObject customObject，它就会起作用。但我想将json请求映射到具有@RequestBody的CustomObject未发生。 不确定我在这里缺少什么？

事实上，当我检查request.getParameterMap()时，它显示为空，但只要我删除contentType: "application/json"，我就会看到参数地图已填充，但仍然然后得到以下错误

`The server refused this request because the request entity is in a format not supported by the requested resource for the requested method`

这是我的CustomObject定义

public class CustomObject implements Serializable {

private static final long serialVersionUID = 1L;
private String name1;
private String name2;

//getters and setters
}

已经通过JQuery, Spring MVC @RequestBody and JSON - making it work together但没有帮助

Answer 1

实际上，当我检查request.getParameterMap（）时，它显示为空但是一删除contentType：“application / json”

这是对的。原因是contentType: "application/json" jquery在内部将数据转换为字符串。所以没有请求参数。如果没有contentType: "application/json"，则默认为contentType' is form data . So data sent is converted to request parameters based on delimiters＆amp; and =`

另请尝试data: JSON.stringify(dataModel)，它应该可以正常工作

Spring MVC @RequestBody不使用jquery ajax？

1 个答案: