Java 如何使用Spring MVC RequestMapping拥有多个参数？

我在这里使用springmvc

RequestMapping

来获取

GET

参数。以下是我的密码-

@RequestMapping(value = "index", method = RequestMethod.GET)
public HashMap<String, String> handleRequest(@RequestParam("dc1Servers") String dc1Servers) {
    HashMap<String, String> model = new HashMap<String, String>();
    String helloWorld = "Hello World!";
    model.put("greeting", helloWorld);

    System.out.println(dc1Servers);

    return model;
}

所以我做了一个这样的方法，可以接受三个输入参数-

@RequestMapping(value = "index", method = RequestMethod.GET)
public HashMap<String, String> handleRequest(@RequestParam("dc1Servers") String dc1Servers, @RequestParam("dc2Servers") String dc2Servers, @RequestParam("dc3Servers") String dc3Servers) {
    HashMap<String, String> model = new HashMap<String, String>();
    String helloWorld = "Hello World!";
    model.put("greeting", helloWorld);

    System.out.println(dc1Servers);
    System.out.println(dc2Servers);
    System.out.println(dc3Servers);

    return model;
}

这给了我一些错误。。你知道我在这里做错了什么吗？

应该是这样的

http://127.0.0.1:8080/dataweb/index?dc1Servers=7&dc2Servers=7&dc3Servers=7

请更改并重试

&在每个参数之间工作

?？仅在url参数的开头起作用

检查这个例子

你也能帮我吗？谢谢你的帮助。

http://127.0.0.1:8080/dataweb/index?dc1Servers=7?dc2Servers=7?dc3Servers=7

http://127.0.0.1:8080/dataweb/index?dc1Servers=7&dc2Servers=7&dc3Servers=7