在有模板的情况下不使用模板，可以使用重定向来返回页面。
文件写入需要先将字符串转换成byte[]，转换方法content.getBytes(StandardCharsets.UTF_8)。
在程序执行结束的末尾一定要将输出流关闭。
@GetMapping("/detail/{id}")
public String detail(@PathVariable("id") Long id){
final GsWeather gsWeather = gsWeatherService.selectGsWeatherById(id);
String content = "<!DOCTYPE html>\n" +
"<html>\n" +
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n" +
"<head>\n" +
" <th:block th:include=\"include :: header('修改出行气象')\" />\n" +
" <style>\n" +
" input{\n" +
" width:100%;\n" +
" border:none;\n" +
" text-align: center;\n" +
" outline-color: aqua;\n" +
" }\n" +
" span{\n" +
" display: inline-block;\n" +
" width:25%;\n" +
" text-align: center;\n" +
" }\n" +
" #table{\n" +
" width:80%;\n" +
" margin: 10px auto;\n" +
" }\n" +
" </style>\n" +
"</head>\n" +
"<body class=\"white-bg\">\n" +
"<input type=\"hidden\" id=\"id\" value=\""+gsWeather.getId()+"\">\n" +
"<div id=\"table\" class=\"container-div\">"+gsWeather.getHtml()+
"</div>\n" +
"<th:block th:include=\"include :: footer\" />\n" +
"</body>\n" +
"</html>";
//获取文件路径，解决部署时路径问题
ClassPathResource resource = new ClassPathResource("detail.html");
String path = resource.getPath();
//获取文件
File file = new File(path);
//写入文件
FileOutputStream fileOutputStream = null;
try {
fileOutputStream = new FileOutputStream(file);
//文件写入需要先将字符串转换成byte[]
//转换方法content.getBytes(StandardCharsets.UTF_8)
byte[] bytes = content.getBytes(StandardCharsets.UTF_8);
fileOutputStream.write(bytes);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
fileOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
//在有模板的情况下不使用模板，可以使用重定向来返回页面
return "redirect:/html/detail.html";
}
}