spring mvc接受页面json对象,处理后传出json到页面并输出
    JSON.stringify 必须要用,否则页面的json被spring mvc接受时候为对象,对面会自动转成对象字符串乱码。  所以用这个方法可以把json转成字符串传送。
页面
引用
<script src="${ctx}/common/js/customer/jquery.json-2.3.min.js"></script>
<div id="res"></div>
<script>
var postData=JSON.stringify( {"Body":{"SecUser":"iphone1.0"},"Header":{"MsaleTunn":"001","Sign":"4027ac80ca9bb07f638afd911c3febd9"}}); 
$.ajax({  
    url:"${ctx}/security/login",  
    type:"POST",  
    contentType: "application/json",  
    dataType: "json",  
    data:postData,  
    success:function(respon){  
    	$("#res").html(JSON.stringify(respon));
    },  
    error:function(er){  
        $("#res").html(JSON.stringify(er));
    }  
});
</script>
代码
@Controller
@RequestMapping("/security")
public class SecurityController {
	@Autowired
	private LoginAction loginAction;
	
	@RequestMapping(value = "/login", method = RequestMethod.POST)
	public @ResponseBody String login(@RequestBody String json) {
		return loginAction.action(json);
	}
	@RequestMapping(value = "")
	public  String login() {
		int i=1+1;
		return "mobile/test";
	}
}