From 7f05359125eda720e6fb90d83c6267ca83c3ccd1 Mon Sep 17 00:00:00 2001
From: zhanghongqing <zhanghongqing@intranet.com>
Date: Wed, 1 Aug 2018 10:26:29 +0800
Subject: [PATCH] =?UTF-8?q?=E6=97=A5=E5=BF=97=E5=A2=9E=E5=8A=A0string?=
 =?UTF-8?q?=E5=AD=97=E7=AC=A6=E4=B8=B2=E6=A0=BC=E5=BC=8F=E5=8C=96=E6=A0=87?=
 =?UTF-8?q?=E7=AD=BE=E5=8C=85=E6=8B=AC=E8=BD=AC=E4=B9=89=EF=BC=8C=E6=88=AA?=
 =?UTF-8?q?=E5=8F=96=EF=BC=8Cnull=E5=AD=97=E7=AC=A6=E5=A4=84=E7=90=86?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/com/nis/util/StringUtils.java | 28 +++++++++++++++++++++
 src/main/webapp/WEB-INF/tlds/fns.tld        |  8 +++++-
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/nis/util/StringUtils.java b/src/main/java/com/nis/util/StringUtils.java
index 209865bfc..cb573f28f 100644
--- a/src/main/java/com/nis/util/StringUtils.java
+++ b/src/main/java/com/nis/util/StringUtils.java
@@ -472,4 +472,32 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils {
 		return true;
 	}
 
+	public static String stringFormat(String str,int len){
+		if(str.trim().equals("null")||str==null){
+			return "";
+		}else{
+			
+		
+		str = Encodes.escapeHtml(str);
+		if(len!=-1){
+			try {
+				StringBuilder sb = new StringBuilder();
+				int currentLength = 0;
+				for (char c : str.toCharArray()) {
+					currentLength += String.valueOf(c).getBytes("GBK").length;
+					if (currentLength <= len - 3) {
+						sb.append(c);
+					} else {
+						sb.append("...");
+						break;
+					}
+				}
+				return sb.toString();
+			} catch (UnsupportedEncodingException e) {
+				e.printStackTrace();
+			}
+		}
+		return str;
+	}
+	}
 }
diff --git a/src/main/webapp/WEB-INF/tlds/fns.tld b/src/main/webapp/WEB-INF/tlds/fns.tld
index 9f47325c8..95dabb261 100644
--- a/src/main/webapp/WEB-INF/tlds/fns.tld
+++ b/src/main/webapp/WEB-INF/tlds/fns.tld
@@ -354,6 +354,12 @@
     <example>${fns:getPermissionByNo(str1,list)}</example>  
   </function>
   
-  
+    <function>
+    <description>字符串转义及截取,null转""</description>
+    <name>stringFormat</name>
+    <function-class>com.nis.util.StringUtils</function-class>
+    <function-signature>java.lang.String stringFormat(java.lang.String, int)</function-signature>
+    <example>${fns:stringFormat(str,len)}</example>
+  </function>
   
 </taglib>