springmvc jsonp 跨域调用的例子
html代码 ：
<!DOCTYPE html>
<html>
<head>
<title>json跨域调用的例子</title>
</head>
<body>
<script type="text/javascript" src="http://libs.baidu.com/jquery/2.1.1/jquery.min.js">
</script>
<script type="text/javascript">
$(document).ready(function(){
$.ajax({
type : "get",
async: false,
url: "http://127.0.0.1:8080/seg/getSeg?chineseSentence=%E6%88%91%E7%88%B1%E5%8C%97%E4%BA%AC"+'&callback=?',//请求的地址
dataType: "jsonp",
jsonp:"callback", //这个参数会出现在springmvc的方法中
success : function(data) {
alert(data.Age+' '+data.UserName);
}
});
});
</script>
</body>
</html>
springmvc控制器java代码：
package com.example.segment.controller;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
@RequestMapping(value = "/seg/*")
public class ChineseWordsSegmentation {
private static final Logger LOG = LoggerFactory.getLogger(ChineseWordsSegmentation.class);
private ChineseWordsSegment seg;
@RequestMapping(value = "getSeg", method = RequestMethod.GET, produces = {"application/json; charset=UTF-8"})
@ResponseBody
public String getSeg(@RequestParam String chineseSentence, String callback){
String jsonp = "";
String result = "{\"UserName\":\"abc\",\"Age\":\"25\"}";
LOG.info(seg.getSegmentation(chineseSentence).toString());
if(callback.length() > 0){
jsonp = callback + "(" + result + ")";
}
return jsonp;
}
}
