使用java构建Web应用程序中的外来字母问题

问题描述 投票:0回答:1

所以我一直在构建一个简单的应用程序,用户可以将一些数据输入到网页上的html表单中。但是,在使用波兰特殊字母发送数据之后,它将转换为HTML dec。像"ł"这样的代码到我的java后端代码而不是我想要显示的实际字母。我已经尝试过多种方式来改变changin charsets编码,但是我的解决方案似乎都没有用,所以花了几个小时后我决定在这里问一下。

我试过做这些事情:

<html lang="pl">
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<meta http-equiv="Content-Type" content="text/html;charset=ISO 8859-16">

我的后端看起来像这样



@Controller
public class WelcomeController {

    private EpdFileSender sender;

    @Autowired
    public WelcomeController(EpdFileSender sender) {
        this.sender = sender;
    }

    @RequestMapping(value = "/", method = RequestMethod.GET)
    public String showLoginPage() {
        return "welcome";
    }

    @RequestMapping(value = "/", method = RequestMethod.POST)
    public String handleInputRequest(@RequestParam(name = "name") String name, @RequestParam String status1,
            @RequestParam String status2, @RequestParam String status3, ModelMap model) throws Exception {

        model.put("name", name);
        model.put("status1", status1);
        model.put("status2", status2);
        model.put("status3", status3);



        return "welcome";
    }
}

我的HTML看起来像这样:

<!doctype html>
<html lang="pl">
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=ISO 8859-16">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <meta name="description" content="">
    <meta name="author" content="Mark Otto, Jacob Thornton, and Bootstrap contributors">
    <meta name="generator" content="Jekyll v3.8.5">
    <title>Smart Door Card</title>


  </head>

<form action="/" method="POST" class="form-signin" autocomplete="off">
  <i class="fas fa-pen-square fa-7x"></i>
  <h1 class="h3 mb-3 font-weight-normal logo-text">Smart Door Card</h1>

  <input type="text" name="name" class="form-control top" placeholder="Name" required autofocus>
  <input type="text" name="status1" class="form-control middle1" placeholder="Set Status">
  <input type="text" name="status2" class="form-control middle2" placeholder="Set Status">
  <input type="text" name="status3" class="form-control bottom" placeholder="Set Status">

  <button class="btn btn-lg btn-primary btn-block set-button" type="submit">Set Your Card</button>
  <p class="mt-5 mb-3 text-muted logo-footer">&copy; The Smart Door Card</p>
</form>

我希望用户提供的波兰特殊字母在应用程序中显示字母而不是代码。

java html spring jsp servlets
1个回答
1
投票

我发现了一个问题,结果我需要将它添加到我的web.xml中

  <filter>  
    <filter-name>encodingFilter</filter-name>  
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
    <init-param>  
       <param-name>encoding</param-name>  
       <param-value>UTF-8</param-value>  
    </init-param>  
    <init-param>  
       <param-name>forceEncoding</param-name>  
       <param-value>true</param-value>  
    </init-param>  
</filter>  
<filter-mapping>  
    <filter-name>encodingFilter</filter-name>  
    <url-pattern>/*</url-pattern>  
</filter-mapping> 
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