我的注释映射通过我的spring mvc web应用程序工作得很好，但是，它们区分大小写。我找不到让它们不区分大小写的方法。 （我希望在Spring MVC中实现这一点，而不是以某种方式重定向流量）
答案 0 :(得分：20)
Spring 4.2 will support case-insensitive path matching.您可以按如下方式对其进行配置：
procedure GAUSSIAN ELIMINATION (A, b, y)
begin
call start_threads;
call pthread_barrier_wait(phase1_barrier);
for k := 0 to n − 1 do /* Outer loop, second pass */
begin
y[k] := b[k]/A[k, k];
A[k, k] := 1;
for i := k + 1 to n − 1 do
begin
b[i] := b[i] − A[i, k] × y[k];
A[i, k] := 0;
endfor;
endfor;
end GAUSSIAN ELIMINATION
答案 1 :(得分：13)
根据this webpost，您需要在Spring MVC中添加HandlerMapping和HandlerAdapter。 Mapping将请求映射到相应的控制器，适配器负责使用控制器执行请求。
因此，您需要覆盖映射器和适配器的PathMatcher。
Ex（将使所有@Controllers不区分大小写）：
New Matcher：
public class CaseInsenseticePathMatcher extends AntPathMatcher {
@Override
protected boolean doMatch(String pattern, String path, boolean fullMatch, Map<String, String> uriTemplateVariables) {
System.err.println(pattern + " -- " + path);
return super.doMatch(pattern.toLowerCase(), path.toLowerCase(), fullMatch, uriTemplateVariables);
}
}
的applicationContext.xml：
<bean id="matcher" class="test.CaseInsenseticePathMatcher"/>
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="pathMatcher" ref="matcher"/>
</bean>
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="pathMatcher" ref="matcher"/>
<property name="webBindingInitializer">
<bean class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer"/>
</property>
<property name="messageConverters">
<list>
<bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"/>
<bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
<bean class="org.springframework.http.converter.FormHttpMessageConverter"/>
<bean class="org.springframework.http.converter.xml.SourceHttpMessageConverter"/>
</list>
</property>
</bean>
<bean id="conversion-service" class="org.springframework.format.support.FormattingConversionServiceFactoryBean"/>
添加了与＆lt; mvc:annotation-driven＆gt;相同的内容。会做。 （感谢David Parks的链接）
答案 2 :(得分：3)
在Spring 3.2+ / Spring Boot中，您现在可以使用简化的Java配置设置不区分大小写的URL匹配。
首先，您需要创建CaseInsensitivePathMatcher.groovy或Java类：
import org.springframework.util.AntPathMatcher
class CaseInsensitivePathMatcher extends AntPathMatcher{
@Override
protected boolean doMatch(String pattern, String path, boolean fullMatch, Map<String, String> uriTemplateVariables) {
super.doMatch(pattern.toLowerCase(), path.toLowerCase(), fullMatch, uriTemplateVariables)
}
}
接下来，要实现这一点，您应该有一个使用Springs @Configuration注释的类，它扩展了WebMvcConfigurerAdapter类，如下所示（请注意，我的代码包含在.groovy类中，因此'return'关键字是示例中不需要）：
@Configuration
public class ApplicationConfig extends WebMvcConfigurerAdapter
然后将以下两种方法添加到该类中：
/**
* Creates a patchMatcher bean that matches case insensitively
* @return PathMatcher
*/
@Bean
public PathMatcher pathMatcher() {
new CaseInsensitivePathMatcher()
}
/**
* Overrides the configurePathMatch() method in WebMvcConfigurerAdapter
* <br/>Allows us to set a custom path matcher, used by the MVC for @RequestMapping's
* @param configurer
*/
@Override
public void configurePathMatch(PathMatchConfigurer configurer) {
configurer.pathMatcher = pathMatcher()
}
}
就是这样，你现在应该为具有最小配置的不区分大小写的URL进行设置
答案 3 :(得分：1)
问题报告solution by smat
在solution by smat中，有一点副作用（我会责怪spring-mvc）。
首先，AntPathMatcher.doMatch()似乎返回true / false，具体取决于requested-url和controller-method的请求映射字符串（这是唯一应该在这里完成的事情）。但是，此方法也用于另一个目的（不是用documentation编写的！）。另一个目的是在控制器方法中收集@PathVariable的相应值。这些值收集在Map<String, String> uriTemplateVariables（最后一个参数）中。这些收集的值用于作为参数值传递给controller-method。
例如，我们有像这样的控制器方法，
@RequestMapping("/code/{userCode}")
public String getCode(@PathVariable("userCode") String userCode) {
System.out.println(userCode);
}
如果我们使用网址访问/code/AbD
然后使用solution by smat AntPathMatcher.doMatch()将@PathVariable中的Map<String, String> uriTemplateVariables值收集为userCode->abd。由于我们对路径字符串进行了较低的封装，因此收集的值也较低。这个低级的userCode值传递给我们的控制器。
但是，我很感谢solution by smat到目前为止我没有任何其他问题。
<强>解决方案
通过围绕solution by smat开展工作解决了这个问题。如果没有扩展AntPathMatcher类中的小套管路径或模式字符串，我强制我的扩展AntPathMatcher使用我的自定义AntPathStringMatcher。我的自定义AntPathStringMatcher执行大小写匹配，而不更改实际字符串的大小写。
在下面的解决方案代码中，大部分代码都是从原始类代码中复制的（由于私有访问，我想要自定义的代码被隐藏为子类。）
自定义AntPathMatcher，
public class CaseInsensitivePathMatcher extends AntPathMatcher {
private final Map<String, CaseInsensitiveAntPathStringMatcher> stringMatcherCache = new ConcurrentHashMap<String, CaseInsensitiveAntPathStringMatcher>();
/**
* Actually match the given <code>path</code> against the given
* <code>pattern</code>.
*
* @param pattern
* the pattern to match against
* @param path
* the path String to test
* @param fullMatch
* whether a full pattern match is required (else a pattern match
* as far as the given base path goes is sufficient)
* @return <code>true</code> if the supplied <code>path</code> matched,
* <code>false</code> if it didn't
*/
protected boolean doMatch(String pattern, String path, boolean fullMatch, Map<String, String> uriTemplateVariables) {
if (path.startsWith(AntPathMatcher.DEFAULT_PATH_SEPARATOR) != pattern.startsWith(AntPathMatcher.DEFAULT_PATH_SEPARATOR)) {
return false;
}
String[] pattDirs = StringUtils.tokenizeToStringArray(pattern, AntPathMatcher.DEFAULT_PATH_SEPARATOR);
String[] pathDirs = StringUtils.tokenizeToStringArray(path, AntPathMatcher.DEFAULT_PATH_SEPARATOR);
int pattIdxStart = 0;
int pattIdxEnd = pattDirs.length - 1;
int pathIdxStart = 0;
int pathIdxEnd = pathDirs.length - 1;
// Match all elements up to the first **
while (pattIdxStart <= pattIdxEnd && pathIdxStart <= pathIdxEnd) {
String patDir = pattDirs[pattIdxStart];
if ("**".equals(patDir)) {
break;
}
if (!matchStrings(patDir, pathDirs[pathIdxStart], uriTemplateVariables)) {
return false;
}
pattIdxStart++;
pathIdxStart++;
}
if (pathIdxStart > pathIdxEnd) {
// Path is exhausted, only match if rest of pattern is * or **'s
if (pattIdxStart > pattIdxEnd) {
return (pattern.endsWith(AntPathMatcher.DEFAULT_PATH_SEPARATOR) ? path.endsWith(AntPathMatcher.DEFAULT_PATH_SEPARATOR) : !path
.endsWith(AntPathMatcher.DEFAULT_PATH_SEPARATOR));
}
if (!fullMatch) {
return true;
}
if (pattIdxStart == pattIdxEnd && pattDirs[pattIdxStart].equals("*") && path.endsWith(AntPathMatcher.DEFAULT_PATH_SEPARATOR)) {
return true;
}
for (int i = pattIdxStart; i <= pattIdxEnd; i++) {
if (!pattDirs[i].equals("**")) {
return false;
}
}
return true;
} else if (pattIdxStart > pattIdxEnd) {
// String not exhausted, but pattern is. Failure.
return false;
} else if (!fullMatch && "**".equals(pattDirs[pattIdxStart])) {
// Path start definitely matches due to "**" part in pattern.
return true;
}
// up to last '**'
while (pattIdxStart <= pattIdxEnd && pathIdxStart <= pathIdxEnd) {
String patDir = pattDirs[pattIdxEnd];
if (patDir.equals("**")) {
break;
}
if (!matchStrings(patDir, pathDirs[pathIdxEnd], uriTemplateVariables)) {
return false;
}
pattIdxEnd--;
pathIdxEnd--;
}
if (pathIdxStart > pathIdxEnd) {
// String is exhausted
for (int i = pattIdxStart; i <= pattIdxEnd; i++) {
if (!pattDirs[i].equals("**")) {
return false;
}
}
return true;
}
while (pattIdxStart != pattIdxEnd && pathIdxStart <= pathIdxEnd) {
int patIdxTmp = -1;
for (int i = pattIdxStart + 1; i <= pattIdxEnd; i++) {
if (pattDirs[i].equals("**")) {
patIdxTmp = i;
break;
}
}
if (patIdxTmp == pattIdxStart + 1) {
// '**/**' situation, so skip one
pattIdxStart++;
continue;
}
// Find the pattern between padIdxStart & padIdxTmp in str between
// strIdxStart & strIdxEnd
int patLength = (patIdxTmp - pattIdxStart - 1);
int strLength = (pathIdxEnd - pathIdxStart + 1);
int foundIdx = -1;
strLoop: for (int i = 0; i <= strLength - patLength; i++) {
for (int j = 0; j < patLength; j++) {
String subPat = pattDirs[pattIdxStart + j + 1];
String subStr = pathDirs[pathIdxStart + i + j];
if (!matchStrings(subPat, subStr, uriTemplateVariables)) {
continue strLoop;
}
}
foundIdx = pathIdxStart + i;
break;
}
if (foundIdx == -1) {
return false;
}
pattIdxStart = patIdxTmp;
pathIdxStart = foundIdx + patLength;
}
for (int i = pattIdxStart; i <= pattIdxEnd; i++) {
if (!pattDirs[i].equals("**")) {
return false;
}
}
return true;
}
/**
* Tests whether or not a string matches against a pattern. The pattern may
* contain two special characters:<br>
* '*' means zero or more characters<br>
* '?' means one and only one character
*
* @param pattern
* pattern to match against. Must not be <code>null</code>.
* @param str
* string which must be matched against the pattern. Must not be
* <code>null</code>.
* @return <code>true</code> if the string matches against the pattern, or
* <code>false</code> otherwise.
*/
private boolean matchStrings(String pattern, String str, Map<String, String> uriTemplateVariables) {
CaseInsensitiveAntPathStringMatcher matcher = this.stringMatcherCache.get(pattern);
if (matcher == null) {
matcher = new CaseInsensitiveAntPathStringMatcher(pattern);
this.stringMatcherCache.put(pattern, matcher);
}
return matcher.matchStrings(str, uriTemplateVariables);
}
}
自定义AntPathStringMatcher，
public class CaseInsensitiveAntPathStringMatcher {
private static final Pattern GLOB_PATTERN = Pattern.compile("\\?|\\*|\\{((?:\\{[^/]+?\\}|[^/{}]|\\\\[{}])+?)\\}");
private static final String DEFAULT_VARIABLE_PATTERN = "(.*)";
private final Pattern pattern;
private final List<String> variableNames = new LinkedList<String>();
/** Construct a new instance of the <code>AntPatchStringMatcher</code>. */
CaseInsensitiveAntPathStringMatcher(String pattern) {
this.pattern = createPattern(pattern);
}
private Pattern createPattern(String pattern) {
StringBuilder patternBuilder = new StringBuilder();
Matcher m = GLOB_PATTERN.matcher(pattern);
int end = 0;
while (m.find()) {
patternBuilder.append(quote(pattern, end, m.start()));
String match = m.group();
if ("?".equals(match)) {
patternBuilder.append('.');
}
else if ("*".equals(match)) {
patternBuilder.append(".*");
}
else if (match.startsWith("{") && match.endsWith("}")) {
int colonIdx = match.indexOf(':');
if (colonIdx == -1) {
patternBuilder.append(DEFAULT_VARIABLE_PATTERN);
variableNames.add(m.group(1));
}
else {
String variablePattern = match.substring(colonIdx + 1, match.length() - 1);
patternBuilder.append('(');
patternBuilder.append(variablePattern);
patternBuilder.append(')');
String variableName = match.substring(1, colonIdx);
variableNames.add(variableName);
}
}
end = m.end();
}
patternBuilder.append(quote(pattern, end, pattern.length()));
return Pattern.compile(patternBuilder.toString(), Pattern.CASE_INSENSITIVE); // this line is updated to create case-insensitive pattern object
}
private String quote(String s, int start, int end) {
if (start == end) {
return "";
}
return Pattern.quote(s.substring(start, end));
}
/**
* Main entry point.
*
* @return <code>true</code> if the string matches against the pattern, or <code>false</code> otherwise.
*/
public boolean matchStrings(String str, Map<String, String> uriTemplateVariables) {
Matcher matcher = pattern.matcher(str);
if (matcher.matches()) {
if (uriTemplateVariables != null) {
// SPR-8455
Assert.isTrue(variableNames.size() == matcher.groupCount(),
"The number of capturing groups in the pattern segment " + pattern +
" does not match the number of URI template variables it defines, which can occur if " +
" capturing groups are used in a URI template regex. Use non-capturing groups instead.");
for (int i = 1; i <= matcher.groupCount(); i++) {
String name = this.variableNames.get(i - 1);
String value = matcher.group(i);
uriTemplateVariables.put(name, value);
}
}
return true;
}
else {
return false;
}
}
答案 4 :(得分：1)
Spring 4.2中的bean文件示例，这只是支持v4.2 +：
<mvc:annotation-driven validator="validator">
<mvc:path-matching path-matcher="pathMatcher" />
</mvc:annotation-driven>
...
<!--Set endpoints case insensitive, spring is case-sensitive by default-->
<bean id="pathMatcher" class="org.springframework.util.AntPathMatcher">
<property name="caseSensitive" value="false" />
</bean>
答案 5 :(得分：0)
好吧，我无法回答你的问题（我试过了，我想我可以搞清楚）。但是看到你在2天内没有收到任何回复，至少有一些线索：
这个例子似乎表明它是可能的：
它在Spring中引用了这个类
我的猜测（而且只是猜测）是，您需要扩展<mvc:annotation-driven/>并使用正确的参数实现单个bean，以使其不区分大小写。参见：
http://rapid-web.tumblr.com/post/296916668/what-does-annotation-driven-do
最后一个注意事项，我注意到其他地方在阅读中表示所有路径都默认为小写，您是否确认/MyPath未处理@RequestMapping("/mypath")？
同样，我能做的最好的事情就是思考。也许它会让你走得太远，可以提出一个更具体的问题来引导你找到答案 - 这就是这些事情有时会起作用的方式。祝你好运！