1、前端代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="msg_from_server"></div>
<div id="sse"></div>
<script>
// var sse = new EventSource("http://127.0.0.1:8080/sse")
var sse = new EventSource("http://127.0.0.1:8080/sse-retry")
sse.onmessage = function (evt) {
var el = document.getElementById("sse");
el.innerHTML = evt.data;
}
</script>
</body>
</html>
2、后端代码
@Controller
public class SSEController {
@RequestMapping(value = "/sse")
@ResponseBody
public String getStreamDataImprove(HttpServletResponse httpServletResponse) {
httpServletResponse.setContentType("text/event-stream");
httpServletResponse.setCharacterEncoding("utf-8");
String s = "";
while (true) {
s = "data:" + LocalDateTime.now() + "\n\n";
try {
PrintWriter printWriter = httpServletResponse.getWriter();
Thread.sleep(1000L);
printWriter.write(s);
printWriter.flush();
} catch (IOException | InterruptedException e) {
e.printStackTrace();
}
}
}
@RequestMapping(value = "/sse-retry")
@ResponseBody
public void getStreamDataImprove1(HttpServletResponse httpServletResponse) throws IOException {
httpServletResponse.setContentType("text/event-stream");
httpServletResponse.setCharacterEncoding("utf-8");
String s ="retry:2000\n";
s+="data:"+LocalDateTime.now()+"\n\n";
PrintWriter printWriter = httpServletResponse.getWriter();
printWriter.write(s);
printWriter.flush();
}
}
原文地址:http://www.cnblogs.com/xl4ng/p/16861332.html
1. 本站所有资源来源于用户上传和网络,如有侵权请邮件联系站长!
2. 分享目的仅供大家学习和交流,请务用于商业用途!
3. 如果你也有好源码或者教程,可以到用户中心发布,分享有积分奖励和额外收入!
4. 本站提供的源码、模板、插件等等其他资源,都不包含技术服务请大家谅解!
5. 如有链接无法下载、失效或广告,请联系管理员处理!
6. 本站资源售价只是赞助,收取费用仅维持本站的日常运营所需!
7. 如遇到加密压缩包,默认解压密码为"gltf",如遇到无法解压的请联系管理员!
8. 因为资源和程序源码均为可复制品,所以不支持任何理由的退款兑现,请斟酌后支付下载
声明:如果标题没有注明"已测试"或者"测试可用"等字样的资源源码均未经过站长测试.特别注意没有标注的源码不保证任何可用性