5ÔÂ19ÈÕ JSP»ù´¡
1.essionÄڵĴæ·ÅµÄÊǶÔÏóµÄÒýÓÃ,ËùÒÔÐÞ¸ÄÄÚÖöÔÏóºó,²»ÐèÒªÖØÐ·ÅÖõ½sessionÖÐ
2.ÅäÖÃContext³õʼ»¯²ÎÊý
<Context-param>
<param-name></paran-name>
<param-value></param-value>
<Context-param>
this.getServletContext().getInitParameter(arg0);
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3.ÅäÖÃservlet³õʼ»¯²ÎÊý
<init-param>
<param-name></param-name>
<param-value></param-value>
</inti-param>
ServletConfig config=this.getServletConfig();
config.getParameter("");
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4ÅäÖÃÎļþ properties
¸ñʽ: key=value ÆäÖÐkey²»±ä valueÊDZ仯µÄ
ÀýÈç: #ÆäÖÐ"#"ΪעÊÍ
Îļþ db.properties
username=ÇØÑæÅà
password=peiaihua
×îºÃ·ÅÖõ½/WEB-INF/db.properties
¶ÁÈ¡ÊôÐÔÎļþµÄÐÅÏ¢:
/ÔÚwebÓ¦ÓÃÖÐ,getServletContext().getRealPath±íʾµÄ
ÊÇweb¹¤³ÌµÄ¸ù·¾¶,
Èç:"C:\Program Files\apache-tomcat-6.0.18\webapps\TestURL"
String path=this.getServletContext().getRealPath("");
FileImputSream fi=new FileInputStream(path);
Properties pro=new Properties();
pro.load(fi);
pro.getProperty("key");
String realPath=this.getServletContext().getResourceAsStream("/WEB-INF/db.properties")
±íʾµÄÒ²ÊÇ´Ó¸ù·¾¶¿ªÊ¼¼ÓÔØÎļþ:
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<Load-on-startup>0,1,2,3,....</Load-on-srartup>
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servletͨÐÅ(communicate):
·¾¶ÉèÖÃ:
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ServletFileUpload upload = new ServletFileUpload(factory);
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