英文:
Getting exception while using mockito to get req.getRequestURI()
问题
以下是翻译后的内容：
String reqURI25 = req.getRequestURI().substring(req.getContextPath().length());
private String category = "test";
private String name = "test";
private String isoLanguage = "en";
private String isoCountry = "US";
private String countryName = "United States of America";
private String isoLCCountry = "us";
private String charsetEncoding = "iso-8859-1";
String reqURI25 = req.getRequestURI().substring(req.getContextPath().length());
// 确定最后一个斜杠
// 右侧是表单名称
// 左侧是类别
int lastSlash = reqURI25.lastIndexOf("/");
int uriLen = reqURI25.length();
String form_name = "";
String init_form_name = reqURI25.substring(lastSlash + 1);
boolean skipLastChar = false;
if (((lastSlash + 9) == uriLen) && (init_form_name.equals("director")))
{
Enumeration parameters = req.getParameterNames();
while (parameters.hasMoreElements()) {
String parameterName = (String) parameters.nextElement();
if (parameterName.equals("form_name")) {
form_name = req.getParameter(parameterName);
}
}
if (!form_name.equals("")) {
reqURI25 = reqURI25.substring(0, lastSlash) + "/" + form_name;
lastSlash = reqURI25.lastIndexOf("/");
uriLen = reqURI25.length();
logger.debug(method, "在查询字符串中重新配置的表单名称 reqURI25 = " + reqURI25);
}
}
if ((lastSlash + 1) == uriLen)
{
lastSlash = reqURI25.substring(0, uriLen - 1).lastIndexOf("/");
skipLastChar = true;
}
logger.debug(method, "lastSlash = " + lastSlash);
// category=req.getParameter("category"); // 旧的2.0引擎
// 处理如果lastSlash = 0，没有类别的情况
if (lastSlash == 0)
{
category = "";
}
else
{
category = reqURI25.substring(1, lastSlash);
}
logger.debug(method, "category = " + category);
if (skipLastChar)
{
name = reqURI25.substring(lastSlash + 1, uriLen - 1);
}
else
{
name = reqURI25.substring(lastSlash + 1);
}
logger.debug(method, "name = " + name);
if (name.equals("form.do"))
{
name = req.getParameter("name");
category = req.getParameter("category");
}
}
catch(Exception e)
{
logger.log("无效的表单类别或名称，异常：" + e);
throw new FileNotFoundException("FILE_NOT_FOUND");
}
请注意，我只翻译了您提供的代码部分，没有包括原始英文内容。如果您有任何进一步的翻译需求，请随时告诉我。
英文:
I am facing issue while mocking a requestURI().any help in this issue will be benifical
i am trying to mock using mockito below line
String reqURI25 = req.getRequestURI().substring(req.getContextPath().length());
I tried with
Mockito.when(httpServletRequest.getRequestURI().substring(httpServletRequest.getContextPath().length())).thenReturn("/test/test");
Mockito.when(httpServletRequest.getParameter("name")).thenReturn(name);
Mockito.when(httpServletRequest.getParameter("category")).thenReturn(category);
exception - i am getting java.lang.NullPointerException for
String reqURI25 = req.getRequestURI().substring(req.getContextPath().length());
private String category="test";
private String name="test";
private String isoLanguage="en";
private String isoCountry="US";
private String countryName="United States of America";
private String isoLCCountry="us";
private String charsetEncoding="iso-8859-1";
String reqURI25 = req.getRequestURI().substring(req.getContextPath().length());
//determine the last forward slash
//to the right is the form name
//to the left is the category
int lastSlash = reqURI25.lastIndexOf("/");
int uriLen = reqURI25.length();
String form_name="";
String init_form_name = reqURI25.substring(lastSlash + 1);
boolean skipLastChar = false;
if (((lastSlash + 9) == uriLen) && (init_form_name.equals("director")))
{
Enumeration parameters = req.getParameterNames();
while (parameters.hasMoreElements()) {
String parameterName = (String)parameters.nextElement();
if (parameterName.equals("form_name")) {
form_name = req.getParameter(parameterName);
}
}
if (!form_name.equals("")) {
reqURI25 = reqURI25.substring(0, lastSlash) + "/" + form_name;
lastSlash = reqURI25.lastIndexOf("/");
uriLen = reqURI25.length();
logger.debug(method,"reconfigured formname in querystring reqURI25 = "+reqURI25);
}
}
if ((lastSlash + 1) == uriLen)
{
lastSlash = reqURI25.substring(0, uriLen-1).lastIndexOf("/");
skipLastChar = true;
}
logger.debug(method,"lastSlash = "+lastSlash);
//category=req.getParameter("category"); // old 2.0 engine
// handle for if lastSlash = 0, there is no category
if (lastSlash == 0)
{
category="";
}
else
{
category=reqURI25.substring(1, lastSlash);
}
logger.debug(method,"category = "+category);
if (skipLastChar)
{
name=reqURI25.substring(lastSlash + 1, uriLen - 1);
}
else
{
name=reqURI25.substring(lastSlash + 1);
}
logger.debug(method,"name = "+name);
if (name.equals("form.do"))
{
name=req.getParameter("name");
category=req.getParameter("category");
}
}
catch(Exception e)
{
logger.log("Invalid form category or name, EXCEPTION: "+e);
throw new FileNotFoundException("FILE_NOT_FOUND");
}
</details>
# 答案1
**得分**: 2
看起来你试图一次性模拟太多内容，你需要逐个执行每个方法调用，就像这样（可能需要微调以修复一些错位错误，但你能理解这个思路）：
```java
Mockito.when(httpServletRequest.getRequestURI()).thenReturn("https://example.com/test/test");
Mockito.when(httpServletRequest.getContextPath()).thenReturn("https://example.com/");
从某种角度来说，这实际上是一件好事，因为现在你还在测试该行中的子字符串逻辑。
英文:
It looks like you're trying to mock too much in one go, you need to do each method call individually, like (might need to tweak it for off-by-one errors, but you get the idea):
Mockito.when(httpServletRequest.getRequestURI()).thenReturn("https://example.com/test/test");
Mockito.when(httpServletRequest.getContextPath()).thenReturn("https://example.com/");
This is actually a good thing in a way, because you're now testing the substring logic in that line as well.
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