如何使用映射器将自定义查询字符串附加到grails资源? [英] How do I append custom query strings to grails Resources using a mapper?
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问题描述
我想创建一个将查询字符串附加到actualUrl的Grails资源映射器。迄今为止所有的尝试都失败了 - 但也许我会以错误的方式去做事。示例代码如下;
I would like to create a Grails resources mapper that appends a query string to the actualUrl. All attempts thus far have failed - but maybe I'm going about things the wrong way. Example code follows;
import org.grails.plugin.resource.mapper.MapperPhase
import org.apache.commons.logging.LogFactory
class GlobalizationResourceMapper {
def log = LogFactory.getLog(this.class)
def phase = MapperPhase.RENAMING
def operation = "globalizationquerystring"
def priority = -1
static defaultExcludes = ['**/*.png', '**/*.gif', '**/*.jpg', '**/*.jpeg', '**/*.gz', '**/*.zip']
static defaultIncludes = ['**/*.js','**/*.gsp']
/**
* Cache the resource based on current language in use. Do this by appending a query string on the resource URL indicating language.
*/
def map(resource, config) {
def query = [l:'en_US']
resource.actualUrl = resource.actualUrl + '?' + query.collect { it }.join('&')
if (log.debugEnabled) log.debug "Modified URL: ${resource.actualUrl}"
log.info "Modified URL: ${resource.actualUrl}"
}
}
但任何请求的资源都会以重定向循环和404结束。
The actual URL gets changed appropriately, but any resource requested with it ends up in a redirect loop and 404's.
推荐答案
您可以将参数追加到 * Resources.groovy
即在资源被声明的地方(而不是在映射器中)使用:
You can append the params to the URL in *Resources.groovy
i.e. at the point where the resource is declared (rather than in the mapper) using:
resource url: '/js/foo.js', wrapper: { baseUrl ->
def query = [l:'en_US']
baseUrl + '?' + query.collect { it }.join('&')
}
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