JSP纯文本电子邮件不呈现换行符

我有一个联系人表单，在提交时，将表单的所有数据发布到电子邮件操作中，然后以纯文本形式呈现确认电子邮件。数据通过得很好，但有些行忽略了各自的换行符

JSP:

<%@ page language="java" contentType="text/plain;" %><%@ page import="com.shared.Configuration" %><%@ taglib uri="/WEB-INF/jstl-core.tld" prefix="c" %>Contact Us Form: ${issue}

Name: ${name}
Email Address: ${emailAddress}
<c:if test="${not empty accessCode}">Access Code: ${accessCode}</c:if>
<c:if test="${not empty itemId}">Inventory Number: ${itemId}</c:if>
<c:if test="${not empty title}">Title: ${title}</c:if>
<c:if test="${not empty device_active}">User Device: ${device}</c:if>
<c:if test="${not empty os_active}">User Operating System/Version: ${operatingSystem}</c:if>
<c:if test="${not empty browser_active}">User Web Browser/Version: ${webBrowser}</c:if>
<c:if test="${hasError eq 'Y' or hasError eq 'N'}"><c:choose><c:when test="${hasError eq 'Y'}">Error Message: ${errorMessage}</c:when><c:otherwise>No Error message was present</c:otherwise></c:choose></c:if>
<c:if test="${not empty otherDetails}">Other Details: ${otherDetails}</c:if>
<c:if test="${not empty problemDetails}">Problem Details: ${problemDetails}</c:if>**

Contact Us Form: Can't access the extra PlayBack+ features

Name: me
Email Address: jjozwowski@halleonard.com
Access Code: aqwsedrftgyhuj87
Inventory Number: 12345678
Title:Title: this track
User Device: Desktop
User Operating System/Version: Mac OS 10.9.5 User Web Browser/Version: Chrome 55 Error Message:
Other Details:no other details Problem Details:

---

用户操作系统、用户浏览器、错误消息和问题详细信息中的换行符不存在。办公室里没有人有解决办法。有人知道发生了什么吗？

我会在三个地方搜索问题：

(一)

这可能是JSP中新行的不可打印字符的问题

<c:if ...></c:if>\r\n
<c:if ...></c:if>\n
<c:if ...></c:if>\r

如果trimDirectiveWhitespaces设置为true，这在许多情况下都有意义，那么您可以通过在JSP中添加以下行来停用它：

请看以下示例：

<jsp-config>
  <jsp-property-group>
    <url-pattern>*.jsp</url-pattern>
    <trim-directive-whitespaces>true</trim-directive-whitespaces>
  </jsp-property-group>
</jsp-config>