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不管在何种环境下用过hibernate的人都知道,哪怕用了show_sql打印出来的sql也是由占位符号的,占位符号的参数值是没有显示出来的,这个开发调试过程中很不方便。同样就算是原生的PreparedStatement同样如此,那有没有办法可以做到打印出来完整的带参数值的sql呢?答案是有的,利用p6spy,下载地址是:sourceforge.net/projects/p6spy/,需要翻墙才可以打开,下载后解压,看到一个p6spy.jar和一个spy.properties,分别吧jar加入classpath中,spy.properties放入到你的src目录下即可,修改properties中的数据源,比如我的是mysql,我修改成如下:
################################################################## P6Spy Options File ## See documentation for detailed instructions #################################################################################################################################### MODULES ## ## Modules provide the P6Spy functionality. If a module, such ## as module_log is commented out, that functionality will not ## be available. If it is not commented out (if it is active), ## the functionality will be active. ## ## Values set in Modules cannot be reloaded using the ## reloadproperties variable. Once they are loaded, they remain ## in memory until the application is restarted. ## ##################################################################module.log=com.p6spy.engine.logging.P6LogFactory#module.outage=com.p6spy.engine.outage.P6OutageFactory################################################################## REALDRIVER(s) ## ## In your application server configuration file you replace the ## "real driver" name with com.p6spy.engine.P6SpyDriver. This is ## where you put the name of your real driver P6Spy can find and ## register your real driver to do the database work. ## ## If your application uses several drivers specify them in ## realdriver2, realdriver3. See the documentation for more ## details. ## ## Values set in REALDRIVER(s) cannot be reloaded using the ## reloadproperties variable. Once they are loaded, they remain ## in memory until the application is restarted. ## ################################################################### oracle driver# realdriver=oracle.jdbc.driver.OracleDriver
# mysql Connector/J driver# realdriver=com.mysql.jdbc.Driver# informix driver# realdriver=com.informix.jdbc.IfxDriver# ibm db2 driver# realdriver=COM.ibm.db2.jdbc.net.DB2Driver# the mysql open source driver#---此处我修改---#
realdriver=com.mysql.jdbc.Driver#specifies another driver to use#---此处我修改---#
#realdriver2=#specifies a third driver to use#---此处我修改---#
#realdriver3=#the DriverManager class sequentially tries every driver that is#registered to find the right driver. In some instances, it's possible to#load up the realdriver before the p6spy driver, in which case your connections#will not get wrapped as the realdriver will "steal" the connection before#p6spy sees it. Set the following property to "true" to cause p6spy to#explicitily deregister the realdrivers#---此处我修改---#
deregisterdrivers=true################################################################# P6LOG SPECIFIC PROPERTIES ################################################################## no properties currently available################################################################# EXECUTION THRESHOLD PROPERTIES ################################################################## This feature applies to the standard logging of P6Spy. # # While the standard logging logs out every statement ## regardless of its execution time, this feature puts a time # # condition on that logging. Only statements that have taken # # longer than the time specified (in milliseconds) will be ## logged. This way it is possible to see only statements that ## have exceeded some high water mark. ## This time is reloadable. ### executionthreshold=integer time (milliseconds)#executionthreshold=################################################################# P6OUTAGE SPECIFIC PROPERTIES ################################################################## Outage Detection## This feature detects long-running statements that may be indicative of# a database outage problem. If this feature is turned on, it will log any# statement that surpasses the configurable time boundary during its execution.# When this feature is enabled, no other statements are logged except the long# running statements. The interval property is the boundary time set in seconds.# For example, if this is set to 2, then any statement requiring at least 2 # seconds will be logged. Note that the same statement will continue to be logged# for as long as it executes. So if the interval is set to 2, and the query takes# 11 seconds, it will be logged 5 times (at the 2, 4, 6, 8, 10 second intervals).## outagedetection=true|false# outagedetectioninterval=integer time (seconds)#outagedetection=falseoutagedetectioninterval=################################################################# COMMON PROPERTIES ################################################################## filter what is loggedfilter=false# comma separated list of tables to include when filteringinclude = # comma separated list of tables to exclude when filteringexclude =# sql expression to evaluate if using regex filteringsqlexpression = # turn on tracingautoflush = true# sets the date format using Java's SimpleDateFormat routinedateformat=#list of categories to explicitly include includecategories=#list of categories to exclude: error, info, batch, debug, statement,#commit, rollback and result are valid valuesexcludecategories=info,debug,result,batch#allows you to use a regex engine or your own matching engine to determine #which statements to log##stringmatcher=com.p6spy.engine.common.GnuRegexMatcher#stringmatcher=com.p6spy.engine.common.JakartaRegexMatcherstringmatcher=# prints a stack trace for every statement loggedstacktrace=false# if stacktrace=true, specifies the stack trace to printstacktraceclass=# determines if property file should be reloadedreloadproperties=false# determines how often should be reloaded in secondsreloadpropertiesinterval=60#if=true then url must be prefixed with p6spy:useprefix=false#specifies the appender to use for logging#appender=com.p6spy.engine.logging.appender.Log4jLoggerappender=com.p6spy.engine.logging.appender.StdoutLogger#appender=com.p6spy.engine.logging.appender.FileLogger# name of logfile to use, note Windows users should make sure to use forward slashes in their pathname (e:/test/spy.log) (used for file logger only)logfile = spy.log# append to the p6spy log file. if this is set to false the# log file is truncated every time. (file logger only)append=true#The following are for log4j logging only#---此处我修改---#
log4j.appender.STDOUT=org.apache.log4j.ConsoleAppenderlog4j.appender.STDOUT.layout=org.apache.log4j.PatternLayoutlog4j.appender.STDOUT.layout.ConversionPattern=p6spy - %m%n#log4j.appender.CHAINSAW_CLIENT=org.apache.log4j.net.SocketAppender#log4j.appender.CHAINSAW_CLIENT.RemoteHost=localhost#log4j.appender.CHAINSAW_CLIENT.Port=4445#log4j.appender.CHAINSAW_CLIENT.LocationInfo=truelog4j.logger.p6spy=INFO,STDOUT################################################################## DataSource replacement ## ## Replace the real DataSource class in your application server ## configuration with the name com.p6spy.engine.spy.P6DataSource,## then add the JNDI name and class name of the real ## DataSource here ## ## Values set in this item cannot be reloaded using the ## reloadproperties variable. Once it is loaded, it remains ## in memory until the application is restarted. ## ###################################################################realdatasource=/RealMySqlDS#realdatasourceclass=com.mysql.jdbc.jdbc2.optional.MysqlDataSource################################################################## DataSource properties ## ## If you are using the DataSource support to intercept calls # # to a DataSource that requires properties for proper setup, ## define those properties here. Use name value pairs, separate ## the name and value with a semicolon, and separate the ## pairs with commas. ## ## The example shown here is for mysql ## ###################################################################realdatasourceproperties=port;3306,serverName;ibmhost,databaseName;mydb################################################################## JNDI DataSource lookup ## ## If you are using the DataSource support outside of an app ## server, you will probably need to define the JNDI Context ## environment. ## ## If the P6Spy code will be executing inside an app server then ## do not use these properties, and the DataSource lookup will ## use the naming context defined by the app server. ## ## The two standard elements of the naming environment are ## jndicontextfactory and jndicontextproviderurl. If you need ## additional elements, use the jndicontextcustom property. ## You can define multiple properties in jndicontextcustom, ## in name value pairs. Separate the name and value with a ## semicolon, and separate the pairs with commas. ## ## The example shown here is for a standalone program running on ## a machine that is also running JBoss, so the JDNI context ## is configured for JBoss (3.0.4). ## ###################################################################jndicontextfactory=org.jnp.interfaces.NamingContextFactory#jndicontextproviderurl=localhost:1099#jndicontextcustom=java.naming.factory.url.pkgs;org.jboss.nameing:org.jnp.interfaces#jndicontextfactory=com.ibm.websphere.naming.WsnInitialContextFactory#jndicontextproviderurl=iiop://localhost:900
然后把真正用到数据源的地方修改成:com.p6spy.engine.spy.P6SpyDriver即可。
我是用的spring3来做的,所以只需要修改上面几个地方即可,别的无需在做修改,就可以使用了。。
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