我想创建一个下拉菜单，允许客户端通过下拉菜单中指定的字段搜索用户。例如，按州搜索，按城市搜索等。

这是我到目前为止的内容：

<p>Search options:</p>
<form action="#" th:action="@{/get/{value}" method="get">
    <select>
        <option th:value="AllUsers">Search all users</option>
        <option th:value="ByUsername">Search by user name</option>
        <option th:value="ByFirstname">Search by first name</option>
        <option th:value="ByLastname">Search by last name</option>
        <option th:value="ByAddress">Search by address</option>
        <option th:value="ByCity">Search by city</option>
        <option th:value="ByState">Search by state</option>
        <option th:value="ByZipCode">Search by zip code</option>
        <option th:value="ByPhoneNumber">Search by phone number</option>
        <option th:value="ByEmail">Search by email</option>
    </select>
    <input type="text" th:field="value" name="searchField"/>
    <input type="submit" value="Search" name="searchButton"/>
</form>

我只是不确定如何连接下拉列表中当前选定项目的action和value标签来指定URI。如果用户选择按州搜索，然后输入“马里兰州”，如何指定相应的URI标签？

这将是我在Spring中执行操作的方法：

@RequestMapping(value = "/get/ByState", method = RequestMethod.GET)
public String getByState() {
    // ...
}

@RequestMapping(value = "/get/ByCity", method = RequestMethod.GET)
public String getByCity() {
    // ...
}