{"id":2927,"date":"2022-12-25T22:30:32","date_gmt":"2022-12-25T14:30:32","guid":{"rendered":"https:\/\/qaqaq.top\/?p=2927"},"modified":"2023-01-01T16:52:01","modified_gmt":"2023-01-01T08:52:01","slug":"helloworld","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=2927","title":{"rendered":"HelloWorld"},"content":{"rendered":"\n

1\u3001\u5f00\u53d1\u73af\u5883<\/h2>\n\n\n\n

IDE\uff1aidea 2022.3<\/p>\n\n\n\n

\u6784\u5efa\u5de5\u5177\uff1amaven 3.8.1<\/p>\n\n\n\n

\u670d\u52a1\u5668\uff1atomcat 8.5.84<\/p>\n\n\n\n

Spring\u7248\u672c\uff1a5.3.1<\/p>\n\n\n\n

2\u3001\u521b\u5efamaven\u5de5\u7a0b<\/h2>\n\n\n\n

a>\u6dfb\u52a0web\u6a21\u5757<\/h3>\n\n\n\n

b>\u6253\u5305\u65b9\u5f0f\uff1awar<\/h3>\n\n\n\n

c>\u5f15\u5165\u4f9d\u8d56<\/h3>\n\n\n\n
  <dependencies>\n\n    <!-- SpringMVC -->\n    <dependency>\n      <groupId>org.springframework<\/groupId>\n      <artifactId>spring-webmvc<\/artifactId>\n      <version>5.3.1<\/version>\n    <\/dependency>\n\n    <!-- \u65e5\u5fd7 -->\n    <dependency>\n      <groupId>ch.qos.logback<\/groupId>\n      <artifactId>logback-classic<\/artifactId>\n      <version>1.2.3<\/version>\n    <\/dependency>\n\n    <!-- ServletAPI -->\n    <dependency>\n      <groupId>javax.servlet<\/groupId>\n      <artifactId>javax.servlet-api<\/artifactId>\n      <version>3.1.0<\/version>\n      <scope>provided<\/scope>\n    <\/dependency>\n\n    <!-- Spring5\u548cThymeleaf\u6574\u5408\u5305 -->\n    <dependency>\n      <groupId>org.thymeleaf<\/groupId>\n      <artifactId>thymeleaf-spring5<\/artifactId>\n      <version>3.0.12.RELEASE<\/version>\n    <\/dependency>\n\n  <\/dependencies><\/code><\/pre>\n\n\n\n
\u6ce8\uff1a\u7531\u4e8e Maven \u7684\u4f20\u9012\u6027\uff0c\u6211\u4eec\u4e0d\u5fc5\u5c06\u6240\u6709\u9700\u8981\u7684\u5305\u5168\u90e8\u914d\u7f6e\u4f9d\u8d56\uff0c\u800c\u662f\u914d\u7f6e\u6700\u9876\u7aef\u7684\u4f9d\u8d56\uff0c\u5176\u4ed6\u9760
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\"\"<\/div><\/figure>\n\n\n\n
3\u3001\u914d\u7f6eweb.xml<\/h2>\n\n\n\n
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a>\u9ed8\u8ba4\u914d\u7f6e\u65b9\u5f0f<\/h3>\n\n\n\n
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servlet.xml<\/p>\n\n\n\n
<!-- \u914d\u7f6eSpringMVC\u7684\u524d\u7aef\u63a7\u5236\u5668\uff0c\u5bf9\u6d4f\u89c8\u5668\u53d1\u9001\u7684\u8bf7\u6c42\u7edf\u4e00\u8fdb\u884c\u5904\u7406 -->\n<servlet>\n    <servlet-name>springMVC<\/servlet-name>\n    <servlet-class>org.springframework.web.servlet.DispatcherServlet<\/servlet-\nclass>\n<\/servlet>\n<servlet-mapping>\n    <servlet-name>springMVC<\/servlet-name>\n    <!--\n        \u8bbe\u7f6espringMVC\u7684\u6838\u5fc3\u63a7\u5236\u5668\u6240\u80fd\u5904\u7406\u7684\u8bf7\u6c42\u7684\u8bf7\u6c42\u8def\u5f84\n        \/\u6240\u5339\u914d\u7684\u8bf7\u6c42\u53ef\u4ee5\u662f\/login\u6216.html\u6216.js\u6216.css\u65b9\u5f0f\u7684\u8bf7\u6c42\u8def\u5f84\n        \u4f46\u662f\/\u4e0d\u80fd\u5339\u914d.jsp\u8bf7\u6c42\u8def\u5f84\u7684\u8bf7\u6c42\n    -->\n    <url-pattern>\/<\/url-pattern>\n<\/servlet-mapping><\/code><\/pre>\n\n\n\n
b>\u6269\u5c55\u914d\u7f6e\u65b9\u5f0f<\/h3>\n\n\n\n
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SpringMVC\u524d\u7aef\u63a7\u5236\u5668DispatcherServlet\u7684\u521d\u59cb\u5316\u65f6\u95f4<\/p>\n\n\n\n
<!-- \u914d\u7f6eSpringMVC\u7684\u524d\u7aef\u63a7\u5236\u5668\uff0c\u5bf9\u6d4f\u89c8\u5668\u53d1\u9001\u7684\u8bf7\u6c42\u7edf\u4e00\u8fdb\u884c\u5904\u7406 -->\n<servlet>\n    <servlet-name>springMVC<\/servlet-name>\n    <servlet-class>org.springframework.web.servlet.DispatcherServlet<\/servlet-\nclass>\n    <!-- \u901a\u8fc7\u521d\u59cb\u5316\u53c2\u6570\u6307\u5b9aSpringMVC\u914d\u7f6e\u6587\u4ef6\u7684\u4f4d\u7f6e\u548c\u540d\u79f0 -->\n    <init-param>\n        <!-- contextConfigLocation\u4e3a\u56fa\u5b9a\u503c -->\n        <param-name>contextConfigLocation<\/param-name>\n        <!-- \u4f7f\u7528classpath:\u8868\u793a\u4ece\u7c7b\u8def\u5f84\u67e5\u627e\u914d\u7f6e\u6587\u4ef6\uff0c\u4f8b\u5982maven\u5de5\u7a0b\u4e2d\u7684\nsrc\/main\/resources -->\n        <param-value>classpath:springMVC.xml<\/param-value>\n    <\/init-param>\n    <!--\n        \u4f5c\u4e3a\u6846\u67b6\u7684\u6838\u5fc3\u7ec4\u4ef6\uff0c\u5728\u542f\u52a8\u8fc7\u7a0b\u4e2d\u6709\u5927\u91cf\u7684\u521d\u59cb\u5316\u64cd\u4f5c\u8981\u505a\n        \u800c\u8fd9\u4e9b\u64cd\u4f5c\u653e\u5728\u7b2c\u4e00\u6b21\u8bf7\u6c42\u65f6\u624d\u6267\u884c\u4f1a\u4e25\u91cd\u5f71\u54cd\u8bbf\u95ee\u901f\u5ea6\n        \u56e0\u6b64\u9700\u8981\u901a\u8fc7\u6b64\u6807\u7b7e\u5c06\u542f\u52a8\u63a7\u5236DispatcherServlet\u7684\u521d\u59cb\u5316\u65f6\u95f4\u63d0\u524d\u5230\u670d\u52a1\u5668\u542f\u52a8\u65f6\n    -->\n    <load-on-startup>1<\/load-on-startup>\n<\/servlet>\n<servlet-mapping>\n    <servlet-name>springMVC<\/servlet-name>\n    <!--\n        \u8bbe\u7f6espringMVC\u7684\u6838\u5fc3\u63a7\u5236\u5668\u6240\u80fd\u5904\u7406\u7684\u8bf7\u6c42\u7684\u8bf7\u6c42\u8def\u5f84\n        \/\u6240\u5339\u914d\u7684\u8bf7\u6c42\u53ef\u4ee5\u662f\/login\u6216.html\u6216.js\u6216.css\u65b9\u5f0f\u7684\u8bf7\u6c42\u8def\u5f84\n        \u4f46\u662f\/\u4e0d\u80fd\u5339\u914d.jsp\u8bf7\u6c42\u8def\u5f84\u7684\u8bf7\u6c42\n    -->\n    <url-pattern>\/<\/url-pattern>\n<\/servlet-mapping><\/code><\/pre>\n\n\n\n
\u6ce8\uff1a<\/p>
<url-pattern>\u6807\u7b7e\u4e2d\u4f7f\u7528\/\u548c\/*\u7684\u533a\u522b\uff1a<\/p>
\/\u6240\u5339\u914d\u7684\u8bf7\u6c42\u53ef\u4ee5\u662f\/login\u6216.html\u6216.js\u6216.css\u65b9\u5f0f\u7684\u8bf7\u6c42\u8def\u5f84\uff0c\u4f46\u662f\/\u4e0d\u80fd\u5339\u914d.jsp\u8bf7\u6c42\u8def\u5f84\u7684\u8bf7\u6c42<\/p>
\u56e0\u6b64\u5c31\u53ef\u4ee5\u907f\u514d\u5728\u8bbf\u95eejsp\u9875\u9762\u65f6\uff0c\u8be5\u8bf7\u6c42\u88abDispatcherServlet\u5904\u7406\uff0c\u4ece\u800c\u627e\u4e0d\u5230\u76f8\u5e94\u7684\u9875\u9762<\/p>
\/*\u5219\u80fd\u591f\u5339\u914d\u6240\u6709\u8bf7\u6c42\uff0c\u4f8b\u5982\u5728\u4f7f\u7528\u8fc7\u6ee4\u5668\u65f6\uff0c\u82e5\u9700\u8981\u5bf9\u6240\u6709\u8bf7\u6c42\u8fdb\u884c\u8fc7\u6ee4\uff0c\u5c31\u9700\u8981\u4f7f\u7528\/<\/em>\u7684\u5199\u6cd5<\/p><\/blockquote>\n\n\n\n
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\u56e0\u4e3aSpringMVC\u7684\u63a7\u5236\u5668\u7531\u4e00\u4e2aPOJO\uff08\u666e\u901a\u7684Java\u7c7b\uff09\u62c5\u4efb\uff0c\u56e0\u6b64\u9700\u8981\u901a\u8fc7@Controller\u6ce8\u89e3\u5c06\u5176\u6807\u8bc6
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@Controller\npublic class HelloController {\n}<\/code><\/pre>\n\n\n\n
5\u3001\u521b\u5efaspringMVC\u7684\u914d\u7f6e\u6587\u4ef6<\/h2>\n\n\n\n
    <!-- \u81ea\u52a8\u626b\u63cf\u5305 -->\n    <context:component-scan base-package=\"top.qaqaq.mvc.controller\"\/>\n    \n    <!-- \u914d\u7f6eThymeleaf\u89c6\u56fe\u89e3\u6790\u5668 -->\n    <bean id=\"viewResolver\"\n          class=\"org.thymeleaf.spring5.view.ThymeleafViewResolver\">\n        <property name=\"order\" value=\"1\"\/>\n        <property name=\"characterEncoding\" value=\"UTF-8\"\/>\n        <property name=\"templateEngine\">\n            <bean class=\"org.thymeleaf.spring5.SpringTemplateEngine\">\n                <property name=\"templateResolver\">\n                    <bean\n                            class=\"org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver\">\n                        <!-- \u89c6\u56fe\u524d\u7f00 -->\n                        <property name=\"prefix\" value=\"\/WEB-INF\/templates\/\"\/>\n                        <!-- \u89c6\u56fe\u540e\u7f00 -->\n                        <property name=\"suffix\" value=\".html\"\/>\n                        <property name=\"templateMode\" value=\"HTML5\"\/>\n                        <property name=\"characterEncoding\" value=\"UTF-8\" \/>\n                    <\/bean>\n                <\/property>\n            <\/bean>\n        <\/property>\n    <\/bean>\n\n    <!--\n        \u5904\u7406\u9759\u6001\u8d44\u6e90\uff0c\u4f8b\u5982html\u3001js\u3001css\u3001jpg\n        \u82e5\u53ea\u8bbe\u7f6e\u8be5\u6807\u7b7e\uff0c\u5219\u53ea\u80fd\u8bbf\u95ee\u9759\u6001\u8d44\u6e90\uff0c\u5176\u4ed6\u8bf7\u6c42\u5219\u65e0\u6cd5\u8bbf\u95ee\n        \u6b64\u65f6\u5fc5\u987b\u8bbe\u7f6e<mvc:annotation-driven\/>\u89e3\u51b3\u95ee\u9898\n    -->\n    <mvc:default-servlet-handler\/>\n\n    <!-- \u5f00\u542fmvc\u6ce8\u89e3\u9a71\u52a8 -->\n    <mvc:annotation-driven>\n        <mvc:message-converters>\n            <!-- \u5904\u7406\u54cd\u5e94\u4e2d\u6587\u5185\u5bb9\u4e71\u7801 -->\n            <bean class=\"org.springframework.http.converter.StringHttpMessageConverter\">\n                <property name=\"defaultCharset\" value=\"UTF-8\" \/>\n                <property name=\"supportedMediaTypes\">\n                    <list>\n                        <value>text\/html<\/value>\n                        <value>application\/json<\/value>\n                    <\/list>\n                <\/property>\n            <\/bean>\n        <\/mvc:message-converters>\n    <\/mvc:annotation-driven><\/code><\/pre>\n\n\n\n
6\u3001\u6d4b\u8bd5HelloWorld<\/h2>\n\n\n\n
a>\u5b9e\u73b0\u5bf9\u9996\u9875\u7684\u8bbf\u95ee<\/h3>\n\n\n\n
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\/\/ @RequestMapping\u6ce8\u89e3\uff1a\u5904\u7406\u8bf7\u6c42\u548c\u63a7\u5236\u5668\u65b9\u6cd5\u4e4b\u95f4\u7684\u6620\u5c04\u5173\u7cfb\n\/\/ @RequestMapping\u6ce8\u89e3\u7684value\u5c5e\u6027\u53ef\u4ee5\u901a\u8fc7\u8bf7\u6c42\u5730\u5740\u5339\u914d\u8bf7\u6c42\uff0c\/\u8868\u793a\u7684\u5f53\u524d\u5de5\u7a0b\u7684\u4e0a\u4e0b\u6587\u8def\u5f84\n\/\/ localhost:8080\/springMVC\/\n@RequestMapping(\"\/\")\npublic String index() {\n    \/\/\u8bbe\u7f6e\u89c6\u56fe\u540d\u79f0\n    return \"index\";\n}<\/code><\/pre>\n\n\n\n
b>\u901a\u8fc7\u8d85\u94fe\u63a5\u8df3\u8f6c\u5230\u6307\u5b9a\u9875\u9762<\/h3>\n\n\n\n
\u5728\u4e3b\u9875index.html\u4e2d\u8bbe\u7f6e\u8d85\u94fe\u63a5<\/p>\n\n\n\n
<!DOCTYPE html>\n<html lang=\"en\" xmlns:th=\"http:\/\/www.thymeleaf.org\">\n<head>\n    <meta charset=\"UTF-8\">\n    <title>\u9996\u9875<\/title>\n<\/head>\n<body>\n    <h1>\u9996\u9875<\/h1>\n    <a th:href=\"@{\/hello}\">HelloWorld<\/a><br\/>\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n
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@RequestMapping(\"\/hello\")\npublic String HelloWorld() {\n    return \"target\";\n}<\/code><\/pre>\n\n\n\n
7\u3001\u603b\u7ed3<\/h2>\n\n\n\n
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DispatcherServlet\u5904\u7406\u3002\u524d\u7aef\u63a7\u5236\u5668\u4f1a\u8bfb\u53d6SpringMVC\u7684\u6838\u5fc3\u914d\u7f6e\u6587\u4ef6\uff0c\u901a\u8fc7\u626b\u63cf\u7ec4\u4ef6\u627e\u5230\u63a7\u5236\u5668\uff0c
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