Question

我正在处理我的grails应用程序，我通过imap连接到gmail并等待收到的电子邮件。当电子邮件到达时，我需要获取其内容，并且它假设是一个字符串。然后我需要将此字符串与正则表达式匹配以获取最有价值的数据。问题是这个字符串有问题，它与我在通常的多行groovy字符串上测试的正则表达式不匹配，一切正常。

def processMessage(def imapMessage){
  if(message && message instanceof IMAPMessage){
              def content = message.getContent()
              println 'Content ='+ content
              m_mailContent = content
              println 'm_mailContent is ' + m_mailContent
          }

然后

def getType(){
       def type = 0 
       if(utility.ParseUtil.matches(m_mailContent, WEB_SERVICE_REGEXP)){
          type = 1
       }else if(utility.ParseUtil.matches(m_mailContent, BNET_REGEXP)){
           type = 2
       }else if(utility.ParseUtil.matches(m_mailContent, QUEUED_REGEXP)){
           type = 3
       }
        return type
    }
But i almost always get type = 0

我可能需要对该字符串执行某些操作。我不知道我得到了什么样的字符串。打印时一切似乎都很好。当然它可能是一些特殊的角色，但我逃脱了吗？

def WEB_SERVICE_REGEXP = /.*ErrorID:\s*[A-Za-z\d\/\.-]*\n.*Time:\s*[A-Za-z\d\/\s:]*\n.*URL:\s*[A-Za-z\d\/\.]*\n/

我从gmail获得的字符串是这样的

ErrorID:  -732861900
Time:     Tue May 24 09:57:54 CEST 2011
URL:      /transnet/organisation.jsp
HttpCode: 500
Error:    class java.lang.SecurityException: Access denied.
User:     Peter Rådlund (peraa), DHL Express (Sweden) AB
Domain:   DHL Support

Stacktrace
----------------------------------------------------------------------
java.lang.SecurityException: Access denied.
       at com.memnon.transnet.admin.Account.checkUpdate(Account.java:725)
       at com.memnon.transnet.consignment.ConsignmentDB.updateOrganisation(ConsignmentDB.java:152)
       at org.apache.jsp.transnet.organisation_jsp._jspService(organisation_jsp.java:842)
       at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
       at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
       at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
       at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at org.apache.catalina.core.A

我试着像这样运动它

//ParseUtil
static def matches(String str, def regexp){
            def m  = str =~ regexp
            m.find()
        }

我希望现在有点清楚。

Answer 1

def WEB_SERVICE_REGEXP = /.*ErrorID:\s*[A-Za-z\d\/\.-]*\n.*Time:\s*[A-Za-z\d\/\s:]*\n.*URL:\s*[A-Za-z\d\/\.]*\n/

我从gmail获得的字符串是这样的

ErrorID:  -732861900
Time:     Tue May 24 09:57:54 CEST 2011
URL:      /transnet/organisation.jsp
HttpCode: 500
Error:    class java.lang.SecurityException: Access denied.
User:     Peter Rådlund (peraa), DHL Express (Sweden) AB
Domain:   DHL Support

Stacktrace
----------------------------------------------------------------------
java.lang.SecurityException: Access denied.
       at com.memnon.transnet.admin.Account.checkUpdate(Account.java:725)
       at com.memnon.transnet.consignment.ConsignmentDB.updateOrganisation(ConsignmentDB.java:152)
       at org.apache.jsp.transnet.organisation_jsp._jspService(organisation_jsp.java:842)
       at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
       at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
       at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
       at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at org.apache.catalina.core.A

我试着像这样运动它

//ParseUtil
static def matches(String str, def regexp){
            def m  = str =~ regexp
            m.find()
        }

我希望现在有点清楚。

我找到了答案。在我的正则表达式中，我搜索“\ n”作为换行符，它确实可以用java字符串伪造来测试解析但是在gmail的电子邮件正文中（这是普通/文本内容类型）我应该搜索“\ r \ n ”。它现在有效！我很开心！

感谢所有回复人员。对此，我真的非常感激。

Answer 2

如果您将WEB_SERVICE_REGEXP更改为：

，是否有效

def WEB_SERVICE_REGEXP = /(?m)^ErrorID:\s*([A-Za-z0-9\-]+)$[\n]^Time:\s*([A-Za-z\d\/\s:]*)$[\n]^URL:\s*([A-Za-z\d\/\.]*)$/

修改

这就是我所拥有的：

def message = ''' ErrorID: -732861900 Time: Tue May 24 09:57:54 CEST 2011 URL: /transnet/organisation.jsp HttpCode: 500 Error: class java.lang.SecurityException: Access denied. User: Peter Rådlund (peraa), DHL Express (Sweden) AB Domain: DHL Support Stacktrace ---------------------------------------------------------------------- java.lang.SecurityException: Access denied. at com.memnon.transnet.admin.Account.checkUpdate(Account.java:725) at com.memnon.transnet.consignment.ConsignmentDB.updateOrganisation(ConsignmentDB.java:152) at org.apache.jsp.transnet.organisation_jsp._jspService(organisation_jsp.java:842) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.A''' def WEB_SERVICE_REGEXP = /(?m)^ErrorID:\s*([A-Za-z0-9\-]+)$[\n]^Time:\s*([A-Za-z\d\/\s:]*)$[\n]^URL:\s*([A-Za-z\d\/\.]*)$/ static def matches( String str, def regexp ){ def m = str =~ regexp m.find() } println matches( message, WEB_SERVICE_REGEXP )

打印

true

Answer 3

变化：

static def matches(String str, def regexp){
            def m  = str =~ regexp
            m.find()
        }

要：

static def matches(String str, regexp){
       (str =~ regexp)
}

使用groovy读取IMAP消息内容字符串

3 个答案: