{"id":393,"date":"2018-06-22T14:11:52","date_gmt":"2018-06-22T06:11:52","guid":{"rendered":"http:\/\/www.sniper97.cn\/?p=393"},"modified":"2018-06-22T14:11:52","modified_gmt":"2018-06-22T06:11:52","slug":"mvc%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"http:\/\/www.sniper97.cn\/index.php\/note\/jsp\/393\/","title":{"rendered":"MVC\u6a21\u5f0f"},"content":{"rendered":"

MVC\u6a21\u5f0f\u7684\u6838\u5fc3\u601d\u60f3\u662f\u6709\u6548\u7ec4\u5408\u201c\u6a21\u578b\uff08model\uff09\u201d\u3001\u201c\u89c6\u56fe\uff08view\uff09\u201d\u3001\u201c\u63a7\u5236\u5668\uff08controller\uff09\u201d\u3002\u662f\u4e00\u79cd\u5148\u8fdb\u7684\u8bbe\u8ba1\u6a21\u5f0f\u3002
\nmodel\uff1a\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u7684\u5bf9\u8c61\u3002
\nview\uff1a\u5411\u63a7\u5236\u5668\u63d0\u4ea4\u6240\u9700\u6570\u636e\u3001\u663e\u793a\u6a21\u578b\u4e2d\u7684\u6570\u636e\u3002
\ncontroller\uff1a\u8d1f\u8d23\u5177\u4f53\u7684\u4e1a\u52a1\u903b\u8f91\u64cd\u4f5c\uff0c\u5373\u63a7\u5236\u5668\u6839\u636e\u89c6\u56fe\u63d0\u51fa\u7684\u8981\u6c42\u5bf9\u6570\u636e\u505a\u51fa\u5904\u7406\uff0c\u5c06\u6709\u5173\u7ed3\u679c\u5b58\u50a8\u5230\u6a21\u578b\u4e2d\uff0c\u5e76\u8d1f\u8d23\u8ba9\u6a21\u578b\u548c\u89c6\u56fe\u8fdb\u884c\u5fc5\u8981\u7684\u4ea4\u4e92\uff0c\u5f53\u6a21\u578b\u4e2d\u7684\u6570\u636e\u53d8\u5316\u65f6\uff0c\u8ba9\u89c6\u56fe\u66f4\u65b0\u663e\u793a\u3002
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\n\"\"
\n\u601d\u8003\u4e0b\u9762?\uff1a
\nexample6_1.jsp<\/p>\n

<%@ page contentType=\"text\/html;charset=gb2312\" %>\n<HTML><body bgcolor=#FFBBFF>\n<font size=2>\n<form action=\"computeSum\" method=\"post\" >\n   \u7b49\u5dee\u6570\u5217\u6c42\u548c\uff1a\n  <BR>\u8f93\u5165\u9996\u9879:<input type=text name=\"firstItem\" size=4>\n      \u8f93\u5165\u516c\u5dee:<input type=text name=\"var\" size=4>\n      \u6c42\u548c\u9879\u6570:<input type=text name=\"number\" size=4>\n  <input type=submit value=\"\u63d0\u4ea4\">\n<\/form>\n<form action=\"computeSum\" Method=\"get\" >\n   \u7b49\u6bd4\u6570\u5217\u6c42\u548c\uff1a\n  <BR>\u8f93\u5165\u9996\u9879:<input type=text name=\"firstItem\" size=4>\n      \u8f93\u5165\u516c\u6bd4:<input type=text name=\"var\" size=4>\n      \u6c42\u548c\u9879\u6570:<input type=text name=\"number\" size=4>\n  <input type=submit value=\"\u63d0\u4ea4\">\n<\/form>\n<\/font><\/body><\/HTML>\n<\/pre>\n
 
\nexample6_1_show.jsp<\/p>\n
<%@ page contentType=\"text\/html;charset=gb2312\" %>\n<jsp:useBean id=\"seriesData\"\n             type=\"mybean.data.Example6_1_Bean\" scope=\"request\"\/>\n<HTML><body bgcolor=#EEFF88>\n  <table border=1>\n   <tr>\n    <th> \u6570\u5217\u7684\u9996\u9879<\/th>\n    <th> <jsp:getProperty name=\"seriesData\" property=\"name\"\/><\/th>\n    <th> \u6240\u6c42\u9879\u6570<\/th>\n    <th> \u6c42\u548c\u7ed3\u679c<\/th>\n   <\/tr>\n    <td><jsp:getProperty name=\"seriesData\" property=\"firstItem\"\/><\/td>\n    <td><jsp:getProperty name=\"seriesData\" property=\"var\"\/><\/td>\n    <td><jsp:getProperty name=\"seriesData\" property=\"number\"\/><\/td>\n    <td><jsp:getProperty name=\"seriesData\" property=\"sum\"\/><\/td>\n   <\/tr>\n   <\/table>\n<\/body><\/HTML>\n<\/pre>\n
 
\nexample6_1_Servlet.java<\/p>\n
package myservlet.control;\nimport mybean.data.Example6_1_Bean;\nimport java.io.*;\nimport javax.servlet.*;\nimport javax.servlet.http.*;\npublic class Example6_1_Servlet extends HttpServlet{\n   public void init(ServletConfig config) throws ServletException{\n      super.init(config);\n   }\n   public void doPost(HttpServletRequest request,HttpServletResponse response)\n                        throws ServletException,IOException{\n      Example6_1_Bean seriesData=new Example6_1_Bean();  \/\/\u521b\u5efaJavabean\u5bf9\u8c61\n      request.setAttribute(\"seriesData\",seriesData);\/\/\u5c06seriesData\u5b58\u5230request\u5bf9\u8c61\u4e2d\n      double a=Double.parseDouble(request.getParameter(\"firstItem\"));\n      double d=Double.parseDouble(request.getParameter(\"var\"));\n      int n=Integer.parseInt(request.getParameter(\"number\"));\n      seriesData.setFirstItem(a);      \/\/\u5c06\u6570\u636e\u5b58\u50a8\u5728\u6570\u636e\u6a21\u578bseriesData\u4e2d\n      seriesData.setVar(d);\n      seriesData.setNumber(n);\n      double sum=0,item=a;\n      int i=1;\n      seriesData.setName(\"\u7b49\u5dee\u6570\u5217\u7684\u516c\u5dee\");\n      while(i<=n){                     \/\/\u8ba1\u7b97\u7b49\u5dee\u6570\u5217\u7684\u548c\n         sum=sum+item;\n         i++;\n         item=item+d;\n      }\n      seriesData.setSum(sum);\n      \/\/\u8bf7\u6c42example6_1_show.jsp\u663e\u793aseriesData\u4e2d\u7684\u6570\u636e:\n      RequestDispatcher dispatcher=\n      request.getRequestDispatcher(\"example6_1_show.jsp\");\n      dispatcher.forward(request,response);\n   }\n   public  void  doGet(HttpServletRequest request,HttpServletResponse response)\n                        throws ServletException,IOException{\n      Example6_1_Bean seriesData=new Example6_1_Bean();\n      request.setAttribute(\"seriesData\",seriesData);\n      double a=Double.parseDouble(request.getParameter(\"firstItem\"));\n      double d=Double.parseDouble(request.getParameter(\"var\"));\n      int n=Integer.parseInt(request.getParameter(\"number\"));\n      seriesData.setFirstItem(a);\n      seriesData.setVar(d);\n      seriesData.setNumber(n);\n      double sum=0,item=a;\n      int i=1;\n      seriesData.setName(\"\u7b49\u6bd4\u6570\u5217\u7684\u516c\u6bd4\");\n      while(i<=n){                     \/\/\u8ba1\u7b97\u7b49\u6bd4\u6570\u5217\u7684\u548c\n          sum=sum+item;\n          i++;\n          item=item*d;\n      }\n      seriesData.setSum(sum);\n      RequestDispatcher dispatcher=\n      request.getRequestDispatcher(\"example6_1_show.jsp\");\n      dispatcher.forward(request,response);\n    }\n}\n<\/pre>\n
 
\nexample6_1_Bean.java<\/p>\n
package mybean.data;\npublic class Example6_1_Bean{\n   double firstItem;  \/\/\u6570\u5217\u9996\u9879\n   double var;        \/\/\u516c\u5dee\u6216\u516c\u6bd4\n   int number;        \/\/\u6c42\u548c\u9879\u6570\n   double sum;       \/\/\u6c42\u548c\u7ed3\u679c\n   String name=\"\";   \/\/\u6570\u5217\u7c7b\u522b\n   public void setFirstItem(double a){\n      firstItem=a;\n   }\n   public double getFirstItem(){\n      return firstItem;\n   }\n   public void setVar(double b){\n      var=b;\n   }\n   public double getVar(){\n      return var;\n   }\n   public void setNumber(int n){\n      number=n;\n   }\n   public double getNumber(){\n      return number;\n   }\n   public void setSum(double s){\n      sum=s;\n   }\n   public double getSum(){\n      return sum;\n   }\n   public void setName(String na){\n      name=na;\n   }\n   public String getName(){\n     return name;\n   }\n}\n<\/pre>\n
 
\nweb.xml\uff08\u6dfb\u52a0\uff09<\/p>\n
<servlet>\n    <servlet-name>compute<\/servlet-name>\n    <servlet-class>myservlet.control.Example6_2_Servlet<\/servlet-class>\n<\/servlet>\n<servlet-mapping>\n   <servlet-name>compute<\/servlet-name>\n   <url-pattern>\/compute<\/url-pattern>\n<\/servlet-mapping><\/pre>\n
 
\n 
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\n <\/p>\n
\u8bfe\u540e\u9898\uff1a<\/strong><\/h3>\n
1.\u5728JSP\u4e2d\uff0cMVC\u6a21\u5f0f\u4e2d\u7684\u6570\u636e\u6a21\u578b\u89d2\u8272\u7531\u8c01\u62c5\u5f53\uff1f
\n\u00b7\u00a0\u00a0\u00a0 JavaBean
\n2.\u5728JSP\u4e2d\uff0cMVC\u6a21\u5f0f\u4e2d\u7684\u63a7\u5236\u5668\u89d2\u8272\u7531\u8c01\u62c5\u5f53\uff1f
\n\u00b7\u00a0\u00a0\u00a0 JavaServlet
\n3.\u5728JSP\u4e2d\uff0cMVC\u6a21\u5f0f\u4e2d\u7684\u89c6\u56fe\u89d2\u8272\u7531\u8c01\u62c5\u5f53\uff1f
\n\u00b7\u00a0\u00a0\u00a0 JSP\u9875\u9762
\n4.MVC\u7684\u597d\u5904\u662f\u4ec0\u4e48\uff1f
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\n5.\u53c2\u7167\u6817\u5b506_1\u8bbe\u8ba1\u4e00\u4e2aWeb\u5e94\u7528\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7JSP\u9875\u9762\u8f93\u5165\u4e09\u89d2\u5f62\u7684\u4e09\u8fb9\u7ed9\u4e00\u4e2aServlet\u63a7\u5236\u5668\uff0c\u63a7\u5236\u5668\u8d1f\u8d23\u8ba1\u7b97\u4e09\u89d2\u5f62\u7684\u9762\u79ef\uff0c\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5230\u6570\u636e\u6a21\u578b\u4e2d\uff0c\u7136\u540e\u8bf7\u6c42JSP\u9875\u9762\u663e\u793a\u6570\u636e\u6a21\u578b\u4e2d\u7684\u6570\u636e\u3002
\n\u00b7\u00a0\u00a0 \u7565\uff0c\u548c6_1\u9664\u4e86Servlet\u66f4\u6539\u903b\u8f91\u90e8\u5206\u548cJSP\u3001bean\u505a\u51fa\u7b80\u5355\u66f4\u6539\u5916\u6ca1\u6709\u533a\u522b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
MVC\u6a21\u5f0f\u7684\u6838\u5fc3\u601d\u60f3\u662f\u6709\u6548\u7ec4\u5408\u201c\u6a21\u578b\uff08model\uff09\u201d\u3001\u201c\u89c6\u56fe\uff08view\uff09\u201d\u3001\u201c\u63a7\u5236\u5668\uff08control […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[22],"tags":[],"views":7510,"_links":{"self":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/posts\/393"}],"collection":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/comments?post=393"}],"version-history":[{"count":0,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/posts\/393\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/media?parent=393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/categories?post=393"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/tags?post=393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}