英文:
Having queryParam with "+" using UriComponentsBuilder
问题
根据问题 https://stackoverflow.com/questions/36135344/springs-uricomponentsbuilder-queryparam-issue，如果查询参数的值中有加号（"+"），默认情况下加号不会被编码。为什么会这样，我如何强制进行编码呢？
在我的示例中，我想要使用 ISO 编码的时间戳，并且我需要对加号进行编码，因为另一个端点会将 ""+"" 解释为空格 (" ")，从而破坏时间戳。
UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl("https://example.com/api/")//
.queryParam("date1", "2020-10-05T08:20:00.000+02:00") //
.query("date2=2020-10-05T08:20:00.000+02:00");
System.out.println(builder.build().toString());
// 生成 https://example.com/api/?date1=2020-10-05T08:20:00.000+02:00&date2=2020-10-05T08:20:00.000+02:00
System.out.println(builder.build().encode().toString());
// 生成 https://example.com/api/?date1=2020-10-05T08:20:00.000+02:00&date2=2020-10-05T08:20:00.000+02:00
预期的结果应该像这样对加号进行编码：2020-10-05T08%3A20%3A00.000%2B02%3A00，或者至少使用 %2B 编码为 2020-10-05T08:20:00.000%2B02:00。
英文:
Based on question https://stackoverflow.com/questions/36135344/springs-uricomponentsbuilder-queryparam-issue, what if a query parameter has a plus ("+") in its value? By default, a plus will not encoded. Why and how can I force this?
In my example, I want to use da ISO-coded timestamp and I need to encode the plus, because the other endpoint will interprete the "+" as a space (" ") and this breaks by timestamp.
UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl("https://example.com/api/")//
.queryParam("date1", "2020-10-05T08:20:00.000+02:00") //
.query("date2=2020-10-05T08:20:00.000+02:00");
System.out.println(builder.build().toString());
// produces https://example.com/api/?date1=2020-10-05T08:20:00.000+02:00&date2=2020-10-05T08:20:00.000+02:00
System.out.println(builder.build().encode().toString());
// produces https://example.com/api/?date1=2020-10-05T08:20:00.000+02:00&date2=2020-10-05T08:20:00.000+02:00
The expected result should encode the plus sign like 2020-10-05T08%3A20%3A00.000%2B02%3A00 or at least 2020-10-05T08:20:00.000%2B02:00 with %2B.
答案1
得分: 0
你可以使用DefaultUriBuilderFactory来对查询参数进行编码，如下所示：
String baseUrl = "https://example.com";
DefaultUriBuilderFactory uriBuilderFactory = new DefaultUriBuilderFactory(baseUrl);
String uri = uriBuilderFactory.uriString("/api/")
.queryParam("date1", "{date1}")
.build("2020-10-05T08:20:00.000+02:00").toString(); // https://example.com/api/?date1=2020-10-05T08%3A20%3A00.000%2B02%3A00
英文:
You can use DefaultUriBuilderFactory to encode the query values as such:
String baseUrl = "https://example.com";
DefaultUriBuilderFactory uriBuilderFactory = new DefaultUriBuilderFactory(baseUrl);
String uri = uriBuilderFactory.uriString("/api/")
.queryParam("date1", "{date1}")
.build("2020-10-05T08:20:00.000+02:00").toString(); // https://example.com/api/?date1=2020-10-05T08%3A20%3A00.000%2B02%3A00
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