eclilpse錛堟棩铓, 鏈堣殌錛?涓?sun
hibernate錛堝啲鐪狅級 涓?spring
jakarta錛堥泤鍔犺揪錛変笌java
tomcat閲屽悇涓粍浠朵粠涓婂埌涓嬶細(xì)catalina錛堣繙紼嬭槳鐐告満錛塼omcat錛堥泟鐚槳鐐告満f14錛塨ootstap
(寮曞錛塭ngine(鍙戝姩鏈猴級host context
]]>
鑰宑hecked exception灝辨槸鍍廔OException榪欐牱鐨勫紓甯?閫氬父鏄渶瑕佺▼搴忓憳鎶涘嚭鐨?涔熸槸閫氳繃try catch鎴栬卼hrow鏉ユ姏鍑虹殑
]]>
import org.apache.struts.util.MessageResources;
MessageResources messages =MessageResources.getMessageResources("cn/edu/ouc/ky2/ApplicationResources");
messages.getMessage("experts.MAJOR_NAME")
2.鏅氱殑java綾?榪欐牱鏇翠負(fù)閫氱敤涓浜?/p>
MessageResources resources =(MessageResources) pageContext.getServletContext().getAttribute(Globals.MESSAGES_KEY);
out.println(resources.getMessage("experts.MAJOR_NAME"));
MessageResources messages = getResources(request);
鍦ˋction綾諱腑瀹氫箟浜唃etResources(HttpServletRequest request)鏂規(guī)硶錛岃鏂規(guī)硶榪斿洖褰撳墠榛樿鐨凪essageResources瀵硅薄錛屽畠?yōu)畞瑁呬簡Resource Bundle涓殑鏂囨湰鍐呭銆傛帴涓嬫潵Action綾誨氨鍙互閫氳繃MessageResources瀵硅薄鏉ヨ闂枃鏈唴瀹廣備緥濡傦紝濡傛灉瑕佽鍙栨秷鎭痥ey涓?#8220;hello.jsp.title”瀵瑰簲鐨勬枃鏈唴瀹癸紝鍙互璋冪敤MessageResources綾葷殑getMessage(String key)鏂規(guī)硶錛?br /> String title=messages.getMessage("hello.jsp.title");
鍦ˋction綾諱腑瀹氫箟浜唃etResources(HttpServletRequest request)鏂規(guī)硶錛岃鏂規(guī)硶榪斿洖褰撳墠榛樿鐨凪essageResources瀵硅薄錛屽畠?yōu)畞瑁呬簡Resource Bundle涓殑鏂囨湰鍐呭銆傛帴涓嬫潵Action綾誨氨鍙互閫氳繃MessageResources瀵硅薄鏉ヨ闂枃鏈唴瀹廣備緥濡傦紝濡傛灉瑕佽鍙栨秷鎭痥ey涓?#8220;hello.jsp.title”瀵瑰簲鐨勬枃鏈唴瀹癸紝鍙互璋冪敤MessageResources綾葷殑getMessage(String key)鏂規(guī)硶錛?br /> String title=messages.getMessage("hello.jsp.title");
]]>
by zhlmmc
Log4j瀹炲湪鏄緢鐔熸?zhèn)夊Q屽嚑涔庢墍鏈夌殑Java欏圭洰閮界敤瀹冨晩銆備絾鏄垜紜竴鐩存病鏈夋悶鏄庣櫧銆傜粓浜庢湁涓澶╂垜鍙椾笉浜嗕簡錛屽畾涓嬪績鍘葷湅浜嗕竴鎶婃枃妗ｏ紝鎵嶄袱涓皬鏃訛紝鎴戠粓浜庢悶鏄庣櫧浜嗐備竴鑸儏鍐典笅Log4j鎬繪槸鍜?/span>Apache Commons-logging涓璧風(fēng)敤鐨勶紝鎴戜篃灝變竴璧蜂粙緇嶅惂銆傚浜嗕釜涓滆タ涓嶆槸鏇撮夯鐑︼紝鑰屾槸鏇寸畝鍗曪紒
<!--[if !supportLists]-->涓銆?/span><!--[endif]-->Log4j鐨勭畝鍗曟濇兂
Log4j鐪熺殑寰堢畝鍗曪紝綆鍗曞埌浠や漢鍙戞寚鐨勫湴姝ャ備笉鏄璁板綍鏃ュ織鍚楋紵閭ｅ氨緇欎綘涓涓?/span>Log錛岀劧鍚庝綘鐢?/span>Log鏉ュ啓涓滆タ灝辮浜嗭紝鍏堟潵涓涓畬鏁寸被紺轟緥錛?/span>
package test;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class Test {
static Log log = LogFactory.getLog(Test.class);
public void log(){
log.debug("Debug info.");
log.info("Info info");
log.warn("Warn info");
log.error("Error info");
log.fatal("Fatal info");
}
/**
* @param args
*/
public static void main(String[] args) {
Test test = new Test();
test.log();
}
}
鍒曪紝鐪嬪畬榪欑瘒鏂囩珷浣犲氨浼?xì)瑙夊緱寰埥巰鍗曚簡銆?/span>
Log4j榛樿鎶婃棩蹇椾俊鎭垎涓轟簲涓瓑綰?/span>
debug < info < warn < error < fatal
铏界劧鍙互鑷繁娣誨姞絳夌駭錛屼絾鏄垜瑙夊緱娌℃湁蹇呰錛屼簲涓鐢ㄤ簡鍚э紒浣犺鍐欏叆淇℃伅鐨勬椂鍊欏氨鎶婁俊鎭綊涓轟簲涓瓑綰т腑鐨勪竴涓紝鐒跺悗璋冪敤鐩稿簲鐨勫嚱鏁板嵆鍙?/span>
鍒嗕簲涓瓑綰у埌搴曟湁浠涔堢敤鍛紵鏃ュ織淇℃伅鍒板簳鍐欏埌鍝噷鍘諱簡錛?/span>
“LogFactory.getLog(Test.class)”鍙堟槸浠涔堟剰鎬濇崗錛熸帴鐫寰涓嬬湅鍚э紒
Log4j鐨勫叧閿箣澶勫湪浜庡畠鐨勭戶鎵挎濇兂銆備篃灝辨槸涓涓?/span>Log鍙互緇ф壙鍙﹀涓涓?/span>Log鐨勫睘鎬э紙杈撳嚭鍒板摢閲岋紝鏃ュ織絳夌駭錛屾棩蹇楁牸寮忕瓑絳夛級銆傛庝箞緇ф壙錛?/span>
Log4j鏄牴鎹?/span>Log鐨勫悕瀛楁潵鍒ゆ柇緇ф壙鍏崇郴鐨勶紝姣斿錛?/span>
鍚嶅瓧涓?#8220;com.zhlmmc.lib”鐨?/span>Log灝辨槸“com.zhlmmc.lib.log”鐨?/span>parent錛屾槑鐧戒簡鍚э紒Log4j榪樻湁涓涓?/span>rootLogger錛岀浉褰撲簬Java鐨?/span>Object銆?/span>
鍥炶繃澶存潵鐪?#8220;LogFactory.getLog(Test.class)”榪欓噷鐨?#8220;Test.class”浜嬪疄涓婁紶榪涘幓鐨勬槸Test榪欎釜綾葷殑瀹屾暣璺緞錛堝寘鍚?/span>+綾誨悕錛夛紝“test.Test”銆傝繖鏍峰鏋滃瓨鍦?#8220;test”榪欎釜Log閭ｄ箞Test榪欎釜Log灝辯戶鎵垮畠錛屽惁鍒欏氨緇ф壙rootLogger銆?/span>
閭ｅ叿浣撶殑Log灞炴ф槸鍦ㄥ摢閲屽畾涔夌殑鍛紵
<!--[if !supportLists]-->浜屻?/span><!--[endif]-->甯歌鐨勯厤緗枃浠?/span>
铏界劧鍙互鐢?/span>xml鎴栬呭湪榪愯鏃剁敤Java鏉ラ厤緗?/span>Log4j錛屼絾榪樻槸properties鏂囦歡濂界敤鍟婏紒
log4j.rootLogger=info, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
鍒嗘瀽涓涓嬶細(xì)
絎竴琛岋紝閰嶇疆log4j.rootLogger浣犳槑鐧藉惂銆傚簲涓哄畠鏄牴錛屾誨緱閰嶇疆涓涓嬶紝鍚﹀垯鍒殑Log緇ф壙浠涔堝晩銆傚叾浠栫殑Log鍙互閰嶇疆涔熷彲浠ヤ笉閰嶇疆銆傜瓑鍙峰悗闈㈢殑絎竴涓弬鏁拌〃紺烘棩蹇楃駭鍒紝鍙互濉簲涓駭鍒腑鐨勪竴縐嶏紝鍚庨潰鐨勫弬鏁伴兘鏄Log鐭ラ亾杈撳嚭鍒板摢閲岋紝濡傛灉浣犳兂璁╂棩蹇楄緭鍑哄埌涓や釜鍦版柟灝卞姞涓や釜杈撳嚭鍙傛暟錛屾瘮濡傦細(xì)
log4j.rootLogger=info, stdout, file
榪欓噷鐨?/span>info琛ㄧず錛岃Log鐨勬棩蹇楃駭鍒負(fù)info錛屾墍鏈夌駭鍒皬浜?/span>info鐨勬棩蹇楅兘涓嶄細(xì)琚褰曘傛瘮濡備嬌鐢ㄨ繖涓厤緗枃浠剁殑璇濓紝鎴戝垰寮濮嬩婦鐨勯偅涓被涓?/span>
log.debug("Debug info.");
榪欏彞璇濇槸涓嶈搗浣滅敤鐨勶紝鍥犱負(fù)debug鐨勭駭鍒皬浜?/span>info銆傝繖鏍峰氨寰堝鏄撴帶鍒朵粈涔堜俊鎭湪璋冭瘯鐨勬椂鍊欒鏄劇ず錛屼粈涔堜俊鎭湪鍙戝竷鐨勬椂鍊欒鍘繪帀銆傝繖浜涢兘涓嶇敤鏀逛唬鐮侊紝寰堟柟渚垮惂銆?/span>
浣嗭紝stdout鍜?/span>file鍙堟槸浠涔堝憿錛?/span>
鎺ョ潃寰涓嬬湅錛屽氨鏄厤緗?/span>stdout浜嗭紝榪欎釜鍚嶅瓧鏄殢渚垮彇鐨勶紝浣犲彲浠ュ彨瀹?/span>A錛?/span>
log4j.appender.A=org.apache.log4j.ConsoleAppender
閭ｄ箞涓婇潰鐨?/span>rootLogger鐨勫弬鏁?/span>stdout涔熻鏀規(guī)垚A錛屽叾浠栫敤鍒扮殑鍦版柟褰撶劧涔熻鏀廣傝繖閲岀殑鍏抽敭涓嶆槸鍚嶅瓧錛岃屾槸appender綾誨瀷錛屾瘮濡傝繖閲岀殑“ConsoleAppender”錛岀湅鏄庣櫧浜嗗惂錛岃緭鍑哄埌Console銆傚悗闈袱琛岄兘鏄緗棩蹇楁牸寮忕殑錛屼竴鑸儏鍐典笅浣犲氨鐓ф妱鍚с傛棦鐒舵槸鏈綆鍏ラ棬鍏蟲敞浜庣悊瑙?/span>Log4j鐨勫伐浣滃師鐞嗭紝鎴戝氨涓嶄粙緇?/span>file綾誨瀷鐨?/span>appender浜嗭紝涓鎼滀竴澶ф妸銆?/span>
鍦ㄥ疄闄呯殑欏圭洰寮鍙戜腑錛屽緢鍙兘閬囧埌鎵寮曠敤鐨勫寘鐢?/span>Log4j鏉ヨ褰曟棩蹇楋紝姣斿Hibernate銆傞偅涔堝湪榪欓噷浣犲彲浠ュ緢瀹規(guī)槗鐨勬帶鍒惰繖涓寘濡備綍璁板綍鏃ュ織銆傛瘮濡傚湪涓婇潰鐨勯厤緗枃浠朵腑鍔犱竴琛岋細(xì)
log4j.logger.org.hibernate=fatal
閭ｄ箞鎵鏈?/span>org.hibernate鍖呬笅闈㈢殑綾誨氨鍙細(xì)鏄劇ず寰堝皯鐨勪俊鎭紝鍥犱負(fù)fatal鐨勭駭鍒渶楂樺晩銆?/span>
<!--[if !supportLists]-->涓夈?/span><!--[endif]-->閮ㄧ講
鍒曪紝榪欏彲涓嶆槸閮ㄧ講Tomcat銆傛妸log4j鐨勫寘鍜?/span>commons-logging鐨勫寘錛堝姞鍦ㄤ竴璧鋒墠涓や釜錛夋斁鍒?/span>classpath涓嬮潰銆傜劧鍚庢妸閰嶇疆鏂囦歡淇濆瓨涓?/span>log4j.properties錛屼篃鏀懼湪classpath涓嬮潰錛堝鏋滅敤Eclipse鐨勮瘽錛屾斁鍦?/span>src鐩綍涓嬪嵆鍙級銆傜劧鍚庝綘灝卞彲浠ヨ窇浜嗐?/span>
]]>
web.xml:
<error-page>
<error-code>404</error-code>
<location>/exception/error404.jsp</location>
</error-page>
<error-page>
<error-code>500</error-code>
<location>/exception/error500.jsp</location>
</error-page>
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/exception/default.jsp</location>
</error-page>
褰揥EB瀹瑰櫒鎹曡幏鍒癳xception-type鎴杄rror-code鎸囧畾鐨勯敊璇椂灝嗚煩鍒扮敱location鎸囧畾鐨勯〉闈€?br />
飦?闂錛氬綋form bean 涓哄姩鎬乥ean鏃訛紝鍦╝ction涓棤娉曞form bean鏁版嵁榪涜楠岃瘉錛屽洜涓篺ormbean娌℃湁鍏蜂綋瀹炵幇綾匯俛ction涓棤娉曞紩鐢?br /> 飦?ActionError/ActionErrors/ActionMessage/ActionMessages:
鏈夋椂鍊欎綘闇瑕佸悜鐢ㄦ埛鎻愪緵鐩稿叧澶勭悊淇℃伅錛屽寘鎷〃鍗曢獙璇佹椂鍙戠幇閿欒絳夈?br /> 1. 鐩稿叧綾諱粙緇嶏細(xì)
ActionMessage錛氱敤浜庝繚瀛樹竴涓笌璧勬簮鏉熷搴旂殑鎻愮ず淇℃伅銆備富瑕佹瀯閫犲嚱鏁板錛?br /> ActionMessage(String message)錛?br /> ActionMessage(String message,paramater)銆?br />
ActionMessages:鐢ㄤ簬淇濆瓨澶氫釜ActionMessage銆傚茍鍦╤tml:errors 鍜宧tml:messages涓搗浣滅敤銆?br /> 涓昏鏋勯犲嚱鏁幫細(xì)
ActionMessages().
涓昏鏂規(guī)硶鏄痑dd(String property,ActionMessage message)
ActionMessages鏈変竴涓狧ashMap綾誨瀷messages淇濆瓨澶氫釜ActionMessage瀵硅薄錛屾瘡涓狝ctionMessage瀵硅薄閮芥湁鍞竴鐨勪竴涓猵roperty鏍囪瘑銆傝繖涓猵roperty鍙互鏄嚜瀹氫箟鐨勪換鎰忓瓧絎︿覆錛屼篃鍙互鐢眔rg.apache.struts.action.ActionMessages.GLOBAL_MESSAGE鎸囧畾
html:messages/html:errors浣跨敤property灞炴ц闂煇涓祫婧?br />
ActionErrors錛氱敤浜庝繚瀛樹竴涓笌璧勬簮鏉熷搴旂殑閿欒淇℃伅銆傜敤娉曡窡ActionMessages宸笉澶氥?br /> ActionError涓嶈禐鎴愪嬌鐢ㄣ?br />
2. 鐗堟湰錛?br /> struts1.1涓敤ActionErrors鎶ュ憡閿欒錛岀敤ActionMessages鎻愪緵淇℃伅銆?br /> 鍦╯truts1.2涓嬌鐢ˋctionMessages鎻愪緵淇℃伅鍜岄敊璇紝涓嶈禐鎴愪嬌鐢ˋctionError
struts1.3涓凡緇忔病鏈堿ctionError綾諱簡銆?br />
3錛?AtionErrors鍜孉ctionMessages鐨勫尯鍒?br />
1錛?ActionErrors鏄疉ctionMessages鐨勪竴涓瓙綾伙紝鍔熻兘鍑犱箮鐩稿悓錛屼笉鍚岀偣鍦ㄤ簬鏍囩<html:errors/>鍜?lt;html:messages>鐨勪嬌鐢ㄤ笂鐨勫尯鍒?br /> html:errors鎸囧畾浜唂ooter鍜宧eader灞炴с傞粯璁ゅ間負(fù)errors.header鍜宔rrors.footer,闇瑕佹椂鍙互鑷繁鎸囧畾銆傚鏋滆祫婧愬睘鎬ф枃浠墮厤緗簡 errors.header鍜宔rrors.footer錛屽垯浠諱綍鏃跺欎嬌鐢╤tml:errors鏃跺紑澶村拰緇撳熬閮芥槸榪欎袱涓睘鎬у搴旂殑璧勬簮淇℃伅銆?br /> 鑰宧tml:message榛樿鎯呭喌涓嬫病鏈塭rrors.header鍜宔rrors.footer鍊鹼紝褰撶劧鍙互鑷繁鎸囧畾銆?br />
2錛?html:errors鍙互鏍規(guī)嵁property灞炴ф寚瀹氭樉紺轟竴涓敊璇俊鎭俬tml:messages鏈変竴涓繀娣婚」id銆俬tml:messages涓嶈兘鐩存帴鏄劇ず淇℃伅錛屽畠?yōu)畣閫夊嚭鐨勪俊鎭斁鍏ヤ竴涓敤id鏍囪瘑鐨処terator瀵硅薄閲岋紝鐒跺悗鍦ㄧ敤ben:write鎴朖STL c:out鏍囩鏄劇ず姣忎釜淇℃伅.渚嬪錛?br /> <html:messages message="true" id="msg">
<c:out value="${msg}"/><br />
</html:messages>
3. 鍏蜂綋鐨勪竴涓緥瀛愶細(xì)
鎺ュ彈杈撳叆欏甸潰input.jsp:
<html:form action="/errormessage/input">
phoneNumber : <html:text property="phoneNumber"/> <html:errors property="<%=org.apache.struts.action.ActionMessages.GLOBAL_MESSAGE %>"/><br/>
<html:submit/><html:cancel/>
</html:form>
struts-config.xml:
<form-beans >
<form-bean name="inputForm" type="cn.rolia.struts.form.errorexception.InputForm" />
</form-beans>
<action-mappings >
<action
attribute="inputForm"
input="/errormessage/input.jsp"
name="inputForm"
path="/errormessage/input"
scope="request"
type="com.yourcompany.struts.action.errormessage.InputAction"
validate="false">
<forward name="success" path="/errormessage/success.jsp" />
</action>
</action-mappings>
InputAction.java:
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
cn.rolia.struts.form.errorexception.InputForm inputForm = (cn.rolia.struts.form.errorexception.InputForm) form;// TODO Auto-generated method stub
String phoneNumber = inputForm.getPhoneNumber();
if(phoneNumber.length()<4){
ActionErrors messages = new ActionErrors();
messages.add(org.apache.struts.action.ActionMessages.GLOBAL_MESSAGE,new ActionMessage("error.errormessage.input"));
this.saveErrors(request, messages);
return mapping.getInputForward();
}
return mapping.findForward("success");
}
瑙ｈ錛氱敤鎴瘋緭鍏ユ墜鏈哄彿鐮侊紝欏甸潰璺寵漿鍒癐nputAction鎺у埗灞傝繘琛屽鐞嗭紝鑻ヨ緭鍏ユ暟鎹皬浜?錛屽垯鍒涘緩涓涓狝ctionMessage綾誨瓨鍌ㄧ浉鍏抽敊璇俊鎭傜劧鍚庡啀鍒涘緩ActionErrors綾誨皢姝ctionMessage鏀懼叆ActionErrors銆傚啀璋冪敤Action鐨剆aveErrors鏂規(guī)硶灝嗘ActionErrors淇濆瓨鐨剅equest鑼冨洿閲岋紝鐒跺悗榪斿洖input.jsp欏甸潰瑕佹眰閲嶆柊杈撳叆騫剁敤html:errors鎻愮ず閿欒淇℃伅銆?br />
4. Action鍖呭惈saveErrors()鏂規(guī)硶鍜宻aveMessages()鏂規(guī)硶銆傚鏋滃垱寤虹殑ActionErrors鍒欏簲璇ヨ皟鐢╯aveErrors()錛岃嫢鍒涘緩鐨勬槸ActionMessages鍒欏簲璇ヨ皟鐢╯aveMessages()鏂規(guī)硶銆?br /> saveErrors()鎺ユ敹ActionMessages鑰屼笉鏄疉ctionErrors;鍚屾椂灝嗗叾淇濆瓨鍦╮equest涓茍鐢ㄤ竴涓敱org.apache.struts.Globals.ERROR_KEY鎸囧畾鐨勫父閲?#8221; org.apache.struts.Globals.ERROR_KEY”鏍囪瘑榪欎釜ActionMessages錛屼究浜巋tml:errors鏌ユ壘銆俿aveMessages()鏂規(guī)硶鎺ユ敹ActionMessages鍚屾椂灝嗗叾淇濆瓨鍦╮equest涓茍鐢ㄤ竴涓敱org.apache.struts.Globals.MESSAGE_KEY鎸囧畾鐨勫父閲?#8221; org.apache.struts.Globals.MESSAGE_KEY”鏍囪瘑榪欎釜ActionMessages錛岃繘鑰岃html:messages浠庡父閲廏lobals.ERROR_KEY涓亶鍘嗚幏鍙栦俊鎭傚彲浠ュ皢鍏跺睘鎬essage璁劇疆涓簍rue錛岄偅涔堝畠?yōu)畣浠庡笖R噺Globals.MESSAGE_KEY涓亶鍘嗚幏鍙栦俊鎭?br />
5. 榛樿鎯呭喌涓媓tml:messages浠?br /> 濡傛灉浣犳兂灝嗕俊鎭繚瀛樺湪session閲岃屼笉鏄痳equest錛宻truts1.2鎻愪緵浜?br /> struts1.1娌℃湁鐨剆aveMessages(HttpSession session, ActionMessages messages)鏂規(guī)硶鍜宻aveErrors(javax.servlet.http.HttpSession session, ActionMessages errors)鏂規(guī)硶銆?br /> InputAction.java:
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
cn.rolia.struts.form.errorexception.InputForm inputForm = (cn.rolia.struts.form.errorexception.InputForm) form;// TODO Auto-generated method stub
String phoneNumber = inputForm.getPhoneNumber();
if(phoneNumber.length()<4){
ActionErrors messages = new ActionErrors();
messages.add(org.apache.struts.action.ActionMessages.GLOBAL_MESSAGE,new ActionMessage("error.errormessage.input"));
this.saveErrors(request.getSession(true), messages);
return mapping.getInputForward();
}
return mapping.findForward("success");
}
]]>
]]>