java - 用于解析 URI 的 Spring 实用程序

Question

我想使用现有的 Spring 功能从 URL 中提取路径变量和查询参数。我有一个路径格式字符串，它对 MVC @RequestMapping 或 UriComponentsBuilder 有效。我也有一个实际的路径。我想从该路径中提取路径变量。

例如。

String format = "location/{state}/{city}";
String actualUrl = "location/washington/seattle";
TheThingImLookingFor parser = new TheThingImLookingFor(format);
Map<String, String> variables = parser.extractPathVariables(actualUrl);
assertThat(variables.get("state", is("washington"));
assertThat(variables.get("city", is("seattle"));

它类似于 UriComponentsBuilder 的逆函数，根据我对 Javadocs 的阅读，它没有任何解析功能。

Answer 1

这里是:

    String format = "location/{state}/{city}";
    String actualUrl = "location/washington/seattle";
    AntPathMatcher pathMatcher = new AntPathMatcher();
    Map<String, String> variables = pathMatcher.extractUriTemplateVariables(format, actualUrl);
    assertThat(variables.get("state"), is("washington"));
    assertThat(variables.get("city"), is("seattle"));