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springmvc支持jsonp

2016-08-23 13:13 411 查看
And an additional 
ControllerAdvice
 like
this (see reference
documentation):
@ControllerAdvice
public class JsonpAdvice extends AbstractJsonpResponseBodyAdvice {

public JsonpAdvice() {
super("callback");
}
}


That's it.


1,新建JsonpAdvice控制器增强

继承org.springframework.web.servlet.mvc.method.annotation.AbstractJsonpResponseBodyAdvice类

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import org.springframework.web.bind.annotation.ControllerAdvice;import org.springframework.web.servlet.mvc.method.annotation.AbstractJsonpResponseBodyAdvice;@ControllerAdvice(basePackages = "com.xxx.web.controller.jsonp")public class JsonpAdvice extends AbstractJsonpResponseBodyAdvice {    public JsonpAdvice() {        super("callback", "jsonp");    }}

2,需要jsonp的controller类使用@RestController注解
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@RestController@RequestMapping("/test")public class RankingListController {    @ResponseBody    @RequestMapping(value = "/getPopularity", method = RequestMethod.GET, produces = "application/json;charset=UTF-8")    //注意这里只能返回对象,JavaBean或JsonObject都可以，不能用String    public JSONObject getPopularity() {        return JSON.parseObject((String) redisClient.getObject(popularityRankingListKey));    }}

3,调用

方式一
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<html><head><meta charset="UTF-8" /><script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script></head><body><div>请用Chrome浏览器打开,返回结果在F12 Console日志显示。</div><script language="JavaScript">$(document).ready(function() {	$.ajax({		url:'http://localhost:8080/test/getPopularity',		dataType:'jsonp',		success:function(data){			console.log("返回Json:")			console.log(data)		}	});});</script></body></html>

方式二
1
http://localhost:8080/test/getPopularity?callback=jsonp

                                            

                                        

                        
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