如何從UriInfo獲取相對路徑

Question

我正在使用Java中的JAX-RS。 我需要從UriInfo獲取URI的相對路徑，即沒有方案和權限部分但具有路徑和查詢參數的URI。 最好的方法是什么？

Answer 1

根據https://jsr311.java.net/nonav/javadoc/javax/ws/rs/core/UriInfo.html如果您調用

 getPath() 

您將“獲取當前請求相對於基本URI的路徑作為字符串。”

Answer 2

盡管幾年后，我還是需要同樣的東西。 不過，這是怎么回事。

URI requestURI = this.uriInfo.getRequestUri();
URI baseUri = this.uriInfo.getBaseUri();
URI uri = baseUri.relativize(requestURI);

Answer 3

String sourceUrl = "http://www.example.com/mysite/whatever/somefolder/bar/unsecure!+?#whätyöühäv€it/site.html"; // your current site
    String targetUrl = "http://www.example.com/mysite/whatever/otherfolder/other.html"; // the link target
    String expectedTarget = "../../../otherfolder/other.html";
    String[] sourceElements = sourceUrl.split("/");
    String[] targetElements = targetUrl.split("/"); // keep in mind that the arrays are of different length!
    StringBuilder uniquePart = new StringBuilder();
    StringBuilder relativePart = new StringBuilder();
    boolean stillSame = true;
    for(int ii = 0; ii < sourceElements.length || ii < targetElements.length; ii++) {
        if(ii < targetElements.length && ii < sourceElements.length && 
                stillSame && sourceElements[ii].equals(targetElements[ii]) && stillSame) continue;
        stillSame = false;
        if(targetElements.length > ii)
          uniquePart.append("/").append(targetElements[ii]);
        if(sourceElements.length > ii +1)
            relativePart.append("../");
    }

    String result = relativePart.toString().substring(0, relativePart.length() -1) + uniquePart.toString();
    System.out.println("result: " + result);

Answer 4

檢查一下：

String uri = "http://google.com/path?q1=va";
    int index = -1;
    if ((index = uri.indexOf("://")) > 0) {
        uri = uri.substring(index + 3);
    }
    index = uri.indexOf('/');
    uri = uri.substring(index);
    System.out.println(uri);

或像這樣：

    URI uri  = new URI("http://google.com/path?q1=va");
    System.out.println(uri.getPath()+"?"+uri.getQuery());