lucao

com.mysql.jdbc.PacketTooBigException: Packet for query is too large (2054817 > 1048576). You can change this value on the server by setting the max_allowed_packet' variable. ...

Exception in thread "Thread-6" java.lang.NoSuchMethodError: org.w3c.dom.Node.getTextContent()Ljava/lang/String; 原因：tomcat在解析某些xml的时候有问题, 解决方法：删除Tomcat \common\endorsed\ 下xercesImpl.jar ,xml-ap...

1.select * 2. from (select * 3. from (select t.*, 4. row_number() OVER(ORDER BY null) AS "row_number" 5. from yz_bingrenyz t) p 6. wh...

/** * 获取字符串的长度，如果有中文，则每个中文字符计为2位 * * @param value * 指定的字符串 * @return 字符串的长度 */public static int length(String value) { int valueL...

number:为正数是相加,为负数是相减public static Date reportGetDate(Date d,String type,int number){ Calendar calendar = Calendar.getInstance(); calendar.setTime(d); if(type.equa...

/** * 按bean的属性值对list集合进行排序 * * @param list * 要排序的集合 * @param propertyName * 集合元素的属性名 * @param isAsc * 排序方向,true--正向排序,false--逆向排序 * @retur...

Configurations.javapackage com.dbutils.common;import java.sql.*;import java.util.*;import java.lang.reflect.*;import javax.sql.DataSource;import org.apache.commons.dbcp.BasicDataSour...

后面加上“\t”

import java.io.*;import java.net.*;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import javax.net.ssl.*;public class httstest { private static ...