我在此POST请求中收到400错误请求。知道这里的问题是什么吗?日志为here。
控制器
@Controller
public class AjaxController {
@RequestMapping(value="/addKeys", method=RequestMethod.POST, consumes="application/json; charset=UTF-8")
public ResponseEntity<String> addKeys(@RequestParam(value="keys") ArrayList<Keys> keys){
System.out.println("::::::::::::::::::::::::::::::::::::::::::::::::::::::::::"+keys);
}
}
上下文servlet.xml中
<beans>
<mvc:annotation-driven />
<context:component-scan base-package="com.canon.fw.controller" />
<bean id="defaultViews" class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" />
</beans>
的Ajax
tmpList = '[{"key":"camera","label":"Camera"},{"key":"mobile","label":"Mobile"}]';
$.ajax({
type: 'POST',
url: ctx+'/ajx/addKeys',
data: JSON.stringify({"keys": tmpList }),
success: function(r){
if(r.model.status=='success'){
debugger;
//glist.push(elem.key);
//addToList(elem.key, elem.label);
highlightInfoDisc();
}
},
dataType: 'json',
contentType: 'application/json'
});
FireBug - 网址
http://localhost:8080/Di/ajx/addKeys
Firebug - 响应标头
Cache-Control must-revalidate,no-cache,no-store
Content-Length 1384
Content-Type text/html; charset=iso-8859-1
Server Jetty(6.1.26)
Firebug - 请求标题
Accept application/json, text/javascript, */*; q=0.01
Accept-Encoding gzip, deflate
Accept-Language en-us,en;q=0.5
Connection keep-alive
Content-Length 74
Content-Type application/json; charset=UTF-8
Cookie JSESSIONID=7mymobst47ig1s7uqy2z1fvx4
Host localhost:8080
Referer http://localhost:8080/Di/tiles/entNews.htm
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1
X-Requested-With XMLHttpRequest
Firebug - 来源
{"keys":[{"key":"canon","label":"Canon"},{"key":"ricoh","label":"Ricoh"}]}
Firebug - 回复
"NetworkError: 400 Bad Request - http://localhost:8080/Di/ajx/addKeys"
答案 0 :(得分:12)
您正在发布JSON,而不是表单数据,但您尝试将ArrayList<Keys>
作为表单参数进行阅读。
尝试从以下位置更改方法签名:
public ResponseEntity<String> addKeys(@RequestParam(value="keys") ArrayList<Keys> keys){
到
public ResponseEntity<String> addKeys(@RequestBody Keys[] keys){
这可能不起作用,因为您的JSON具有一个具有keys
属性的对象,该属性是键列表。因此,您可以尝试将ajax发布数据更改为
data: JSON.stringify(tmpList)
这样您就可以发布列表而不是将其包装在另一个包含keys元素的对象中。