SpringMVC \u548c JavaEE \u5f00\u53d1\u65b9\u5f0f\u7684\u5dee\u5f02<\/h3>\n\n\n\n
SpringMVC \u51fa\u73b0\u7684\u4e00\u4e2a\u76f4\u63a5\u539f\u56e0\uff0c\u5c31\u662f JavaEE \u539f\u59cb\u5f00\u53d1\u65b9\u5f0f\u91cc\u201c\u8bf7\u6c42\u5904\u7406\u903b\u8f91\u5206\u6563\u3001\u6837\u677f\u4ee3\u7801\u8fc7\u591a\u201d\u3002<\/p>\n\n\n\n
\u4e0b\u9762\u8fd9\u5f20\u56fe\u53ef\u4ee5\u76f4\u89c2\u770b\u5230\u4e24\u79cd\u5f00\u53d1\u65b9\u5f0f\u7684\u5dee\u5f02\uff1a<\/p>\n\n\n\n \u5728\u4f20\u7edf Servlet \u4e2d\uff0c\u6211\u4eec\u7684\u5173\u6ce8\u70b9\u7ecf\u5e38\u6df7\u5728\u4e00\u8d77\uff1a<\/p>\n\n\n\n SpringMVC \u7684\u5e95\u5c42\u4ecd\u7136\u79bb\u4e0d\u5f00 Servlet \u548c\u53cd\u5c04\uff0c\u53ea\u662f\u628a\u8fd9\u5957\u6d41\u7a0b\u6846\u67b6\u5316\u4e86\u3002<\/p>\n\n\n\n \u5b8c\u6574\u4e3b\u6d41\u7a0b\u53ef\u4ee5\u6982\u62ec\u4e3a\uff1a<\/p>\n\n\n\n \u8fd9\u4e00\u8282\u5148\u5efa\u7acb\u6700\u5c0f\u53ef\u8fd0\u884c\u94fe\u8def\uff0c\u77e5\u9053 SpringMVC \u9879\u76ee\u662f\u600e\u6837\u542f\u52a8\u8d77\u6765\u7684\u3002<\/p>\n\n\n\n \u5982\u679c\u540e\u7eed\u8981\u76f4\u63a5\u8fd4\u56de JSON\uff0c\u8fd8\u9700\u8981 Jackson\uff1a<\/p>\n\n\n\n \u5148\u770b\u56fe\u91cc\u8868\u8fbe\u7684\u5c42\u6b21\u5173\u7cfb\uff0c\u518d\u7406\u89e3\u8fd9\u51e0\u4e2a\u6982\u5ff5\uff1a<\/p>\n\n\n\n \u5982\u679c\u628a\u8fd9\u5f20\u56fe\u7ffb\u8bd1\u6210\u4e00\u53e5\u66f4\u597d\u8bb0\u7684\u8bdd\uff0c\u5c31\u662f\uff1a<\/p>\n\n\n\n \u8fd9\u5f20\u56fe\u8fd8\u60f3\u8bf4\u660e\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u5173\u7cfb\uff1a<\/p>\n\n\n\n SpringMVC \u91cc\u6700\u5e38\u89c1\u7684\u542f\u52a8\u5165\u53e3\u4e4b\u4e00\uff0c\u662f\u7ee7\u627f\u62bd\u8c61\u7c7b \u5b83\u672c\u8d28\u4e0a\u662f\u4e00\u79cd\u6a21\u677f\u65b9\u6cd5\u5f0f\u7684\u5199\u6cd5\uff1a<\/p>\n\n\n\n \u8fd9\u91cc\u7684\u4e09\u4e2a\u65b9\u6cd5\u5206\u522b\u89e3\u51b3\u4e09\u4ef6\u4e8b\uff1a<\/p>\n\n\n\n \u8fd9\u4e2a\u7c7b\u542f\u52a8\u65f6\uff0c\u901a\u5e38\u4f1a\u6784\u5efa\u4e24\u4e2a\u4e0a\u4e0b\u6587\uff1a<\/p>\n\n\n\n \u4e24\u8005\u4e0d\u662f\u5e73\u7ea7\u65e0\u5173\uff0c\u800c\u662f\u201c\u7236\u5b50\u5bb9\u5668\u201d\u5173\u7cfb\uff1a<\/p>\n\n\n\n \u8fd9\u91cc\u5efa\u8bae\u628a\u5b83\u7406\u89e3\u6210\u201c\u5206\u5c42\u7ba1\u7406\u201d\uff1a<\/p>\n\n\n\n \u8fd9\u6837\u62c6\u5206\u7684\u597d\u5904\u4e0d\u662f\u4e3a\u4e86\u6982\u5ff5\u597d\u770b\uff0c\u800c\u662f\u4e3a\u4e86\u804c\u8d23\u6e05\u6670\uff1a<\/p>\n\n\n\n \u5982\u679c\u628a\u6240\u6709\u7ec4\u4ef6\u90fd\u6df7\u5728\u4e00\u4e2a\u5bb9\u5668\u91cc\uff0c\u867d\u7136\u5f88\u591a\u65f6\u5019\u4e5f\u80fd\u8dd1\uff0c\u4f46\u5c42\u6b21\u4f1a\u53d8\u5f97\u5f88\u6a21\u7cca\uff1b\u800c SpringMVC \u7684\u8fd9\u5957\u62c6\u5206\uff0c\u5929\u7136\u5c31\u9f13\u52b1\u4f60\u6309 Web \u5c42\u548c\u4e1a\u52a1\u5c42\u5206\u5f00\u7ec4\u7ec7\u3002<\/p>\n\n\n\n \u7236\u5b50\u5bb9\u5668\u5173\u7cfb\u6700\u91cd\u8981\u7684\u4e0d\u662f\u201c\u6709\u4e24\u4e2a\u5bb9\u5668\u201d\u8fd9\u53e5\u8bdd\uff0c\u800c\u662f\u5b83\u4eec\u7684\u53ef\u89c1\u6027\u89c4\u5219\uff1a<\/p>\n\n\n\n \u7ffb\u8bd1\u5230\u5f53\u524d\u8fd9\u4e2a\u573a\u666f\u91cc\uff0c\u5c31\u662f\uff1a<\/p>\n\n\n\n \u8fd9\u4e5f\u6b63\u597d\u89e3\u91ca\u4e86\u4e00\u4e2a\u5f00\u53d1\u4e2d\u975e\u5e38\u9ad8\u9891\u7684\u95ee\u9898\uff1a<\/p>\n\n\n\n \u4e3a\u4ec0\u4e48 \u56e0\u4e3a \u56e0\u6b64\uff0cRoot \u5bb9\u5668\u548c Web \u5bb9\u5668\u7684\u62c6\u5206\uff0c\u672c\u8d28\u4e0a\u65e2\u662f\u5bb9\u5668\u7ec4\u7ec7\u65b9\u5f0f\uff0c\u4e5f\u662f\u7cfb\u7edf\u5206\u5c42\u8fb9\u754c\u3002<\/p>\n\n\n\n \u5178\u578b\u5199\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n \u4e5f\u5c31\u662f\u8bf4\uff0c\u5149\u6709 Controller \u7c7b\u8fd8\u4e0d\u591f\uff0cSpringMVC \u8fd8\u9700\u8981\u4e00\u6574\u5957\u201c\u8bc6\u522b\u6ce8\u89e3\u5e76\u8c03\u7528\u65b9\u6cd5\u201d\u7684\u8fd0\u884c\u673a\u5236\uff0c \u5982\u679c\u8bbf\u95ee \u6700\u5c0f SpringMVC \u94fe\u8def\u53ef\u4ee5\u6982\u62ec\u4e3a\uff1a<\/p>\n\n\n\n SpringMVC \u7684\u7075\u9b42\u662f\u8bf7\u6c42\u6620\u5c04\uff0c\u800c\u8bf7\u6c42\u6620\u5c04\u7684\u6838\u5fc3\u5c31\u662f \u8fd9\u4e9b\u5c5e\u6027\u7684\u4f5c\u7528\u5206\u522b\u662f\uff1a<\/p>\n\n\n\n \u6700\u5e38\u7528\u7684\u5c5e\u6027\u5c31\u662f \u8fd9\u91cc\u8981\u6ce8\u610f\u4e24\u70b9\uff1a<\/p>\n\n\n\n \u8fd9\u91cc\u548cServlet\u4e0d\u4e00\u6837\uff0cURL\u6700\u524d\u9762\u53ef\u4ee5\u4e0d\u5199\u201c\/\u201d<\/strong><\/p>\n\n\n\n \u5982\u679c\u4e00\u7ec4\u63a5\u53e3\u90fd\u5c5e\u4e8e\u540c\u4e00\u7c7b\u4e1a\u52a1\uff0c\u53ef\u4ee5\u628a\u5171\u540c\u524d\u7f00\u5199\u5728\u7c7b\u4e0a\uff1a<\/p>\n\n\n\n \u6700\u7ec8\u8def\u5f84 = \u7c7b\u4e0a\u7684\u524d\u7f00 + \u65b9\u6cd5\u4e0a\u7684\u8def\u5f84\u3002<\/p>\n\n\n\n \u8fd9\u79cd\u5199\u6cd5\u7684\u4ef7\u503c\u5728\u4e8e\uff1a<\/p>\n\n\n\n Servlet \u9636\u6bb5\u6211\u4eec\u7528 \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u66f4\u5e38\u89c1\u7684\u662f\u8fd9\u4e9b\u6d3e\u751f\u6ce8\u89e3\uff1a<\/p>\n\n\n\n \u8fd9\u8868\u793a\u8bf7\u6c42\u91cc\u65e2\u8981\u6709 ![\"SpringMVC](\"http:\/\/118.25.99.91\/image\/15_SpringMVC\/Snipaste_2021-07-27_20-30-03.png\")
<\/div>\u5bf9\u6bd4\u9879<\/th> Servlet \u9636\u6bb5<\/th> SpringMVC \u9636\u6bb5<\/th><\/tr><\/thead> \u8bf7\u6c42\u5165\u53e3<\/td> \u4e00\u4e2a\u4e2a Servlet<\/td> \u4e00\u4e2a DispatcherServlet<\/code> + \u591a\u4e2a Handler \u65b9\u6cd5<\/td><\/tr>URL \u6620\u5c04<\/td> \u9760 web.xml<\/code> \u6216@WebServlet\u6ce8\u89e3\u914d Servlet<\/td>\u9760 @RequestMapping<\/code> \u7cfb\u5217\u6ce8\u89e3<\/td><\/tr>\u53c2\u6570\u5904\u7406<\/td> \u624b\u52a8 request.getParameter()<\/code><\/td>\u81ea\u52a8\u7ed1\u5b9a\u5230\u5f62\u53c2\u6216\u5bf9\u8c61<\/td><\/tr> JSON \u54cd\u5e94<\/td> \u624b\u52a8\u5e8f\u5217\u5316\u540e\u5199\u56de<\/td> @ResponseBody<\/code> \u81ea\u52a8\u8f6c\u6362<\/td><\/tr>\u5f02\u5e38\u5904\u7406<\/td> \u6bcf\u4e2a Servlet \u81ea\u5df1\u5904\u7406<\/td> \u53ef\u96c6\u4e2d\u5230\u5168\u5c40\u5f02\u5e38\u5904\u7406\u5668<\/td><\/tr> \u4e0e Spring \u96c6\u6210<\/td> \u9700\u8981\u989d\u5916\u63a5\u7ebf<\/td> \u5929\u7136\u96c6\u6210<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n SpringMVC \u7684\u6838\u5fc3\u6d41\u7a0b<\/h3>\n\n\n\n
![\"SpringMVC](\"http:\/\/118.25.99.91\/image\/15_SpringMVC\/image-20230414173102435.png\")
<\/div>\n
DispatcherServlet<\/code> \u7edf\u4e00\u63a5\u6536\u8bf7\u6c42\u3002<\/li>\n\n\n\nHandlerMapping<\/code> \u6839\u636e URL\u3001\u8bf7\u6c42\u65b9\u6cd5\u7b49\u4fe1\u606f\u627e\u5230\u76ee\u6807 Handler\u3002<\/li>\n\n\n\nHandlerAdapter<\/code> \u8c03\u7528\u5bf9\u5e94\u7684 Handler \u65b9\u6cd5\u3002<\/li>\n\n\n\nModelAndView<\/code> \u6216\u666e\u901a\u5bf9\u8c61\u3002<\/li>\n\n\n\n![\"DispatcherServlet](\"http:\/\/118.25.99.91\/image\/15_SpringMVC\/Snipaste_2021-07-27_20-39-11.png\")
<\/div>![\"SpringMVC](\"http:\/\/118.25.99.91\/image\/15_SpringMVC\/image-20240830101007333.png\")
<\/div>SpringMVC \u5165\u95e8\u6848\u4f8b<\/h2>\n\n\n\n
\u57fa\u7840\u4f9d\u8d56<\/h3>\n\n\n\n
<dependencies>\n <dependency>\n <groupId>org.springframework<\/groupId>\n <artifactId>spring-webmvc<\/artifactId>\n <version>${spring.version}<\/version>\n <\/dependency>\n\n <dependency>\n <groupId>jakarta.servlet<\/groupId>\n <artifactId>jakarta.servlet-api<\/artifactId>\n <version>5.0.0<\/version>\n <scope>provided<\/scope>\n <\/dependency>\n<\/dependencies><\/code><\/pre>\n\n\n\n<dependency>\n <groupId>com.fasterxml.jackson.core<\/groupId>\n <artifactId>jackson-databind<\/artifactId>\n<\/dependency><\/code><\/pre>\n\n\n\nSpring\u548cServlet\u4e4b\u95f4\u7684\u5173\u7cfb<\/h3>\n\n\n\n
\n
DispatcherServlet<\/code>\uff0c\u8bf4\u660e SpringMVC \u5bf9\u5916\u63a5\u6536\u8bf7\u6c42\u7684\u7edf\u4e00\u5165\u53e3\uff0c\u672c\u8d28\u4e0a\u5b83\u81ea\u5df1\u5c31\u662f\u4e00\u4e2a Servlet\u3002<\/li>\n\n\n\nController<\/code> \u8fd9\u7c7b\u76f4\u63a5\u5904\u7406\u8bf7\u6c42\u7684\u7ec4\u4ef6\u3002<\/li>\n\n\n\ndatasource<\/code>\u3001service<\/code>\u3001mapper<\/code> \u8fd9\u7c7b\u6570\u636e\u8bbf\u95ee\u548c\u4e1a\u52a1\u5904\u7406\u7ec4\u4ef6\u3002<\/li>\n\n\n\nDispatcherServlet<\/code>\uff0c\u518d\u7531\u5b83\u53bb Web \u5c42\u5bb9\u5668\u91cc\u627e\u5408\u9002\u7684 Controller<\/code> \u65b9\u6cd5\uff1b\u800c Controller<\/code> \u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u53c8\u53ef\u4ee5\u7ee7\u7eed\u8c03\u7528\u4e0b\u5c42\u5bb9\u5668\u4e2d\u7684 service<\/code>\u3001mapper<\/code>\u3001datasource<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n\n
DispatcherServlet<\/code> \u8d1f\u8d23\u63a5\u8bf7\u6c42\uff0cWeb \u5c42\u5bb9\u5668\u8d1f\u8d23\u653e Controller\uff0c\u4e1a\u52a1\u57fa\u7840\u5bb9\u5668\u8d1f\u8d23\u653e service \/ mapper \/ datasource\uff0c\u4e09\u8005\u534f\u4f5c\u5b8c\u6210\u4e00\u6b21 Web \u8bf7\u6c42\u3002<\/p>\n<\/blockquote>\n\n\n\n\n
DispatcherServlet<\/code> \u4f5c\u4e3a Servlet\uff0c\u8d1f\u8d23\u628a\u5e95\u5c42 Servlet \u8bf7\u6c42\u6865\u63a5\u5230 Spring \u5bb9\u5668\u4e2d\u7684 Controller \u65b9\u6cd5\u3002<\/li>\n\n\n\n![\"AbstractAnnotationConfigDispatcherServletInitializer](\"http:\/\/118.25.99.91\/courses\/markdown\/image\/13-SpringMVC-optimized\/image-20230415101832458.png\")
<\/div>JavaConfig \u542f\u52a8\u65b9\u5f0f<\/h3>\n\n\n\n
AbstractAnnotationConfigDispatcherServletInitializer<\/code>\u3002<\/p>\n\n\n\n\n
public class ApplicationInitialization\n extends AbstractAnnotationConfigDispatcherServletInitializer {\n\n @Override\n protected Class<?>[] getRootConfigClasses() {\n return new Class[]{RootConfiguration.class};\n }\n\n @Override\n protected Class<?>[] getServletConfigClasses() {\n return new Class[]{WebConfiguration.class};\n }\n\n @Override\n protected String[] getServletMappings() {\n return new String[]{\"\/\"};\n }\n}<\/code><\/pre>\n\n\n\n\n
getRootConfigClasses()<\/code>\uff1a\u52a0\u8f7d\u4e1a\u52a1\u5c42\u3001\u6301\u4e45\u5c42\u76f8\u5173\u914d\u7f6e<\/li>\n\n\n\ngetServletConfigClasses()<\/code>\uff1a\u52a0\u8f7d SpringMVC \u81ea\u5df1\u7684 Web \u914d\u7f6e<\/li>\n\n\n\ngetServletMappings()<\/code>\uff1a\u628a DispatcherServlet<\/code> \u6620\u5c04\u5230\u54ea\u4e2a\u8def\u5f84<\/li>\n<\/ul>\n\n\n\nRoot \u5bb9\u5668\u4e0e Web \u5bb9\u5668<\/h3>\n\n\n\n
\n
ApplicationContext<\/code><\/li>\n\n\n\nWebApplicationContext<\/code><\/li>\n<\/ul>\n\n\n\n\n
Service<\/code>\u3001Dao<\/code>\u3001\u6570\u636e\u6e90\u7b49<\/li>\n\n\n\nController<\/code>\u3001\u89c6\u56fe\u89e3\u6790\u3001\u62e6\u622a\u5668\u3001\u8d44\u6e90\u6620\u5c04\u7b49<\/li>\n<\/ul>\n\n\n\n<\/div>\n
\n
Controller<\/code> \u8d1f\u8d23\u63a5\u8bf7\u6c42\u3001\u6536\u53c2\u6570\u3001\u7ed9\u54cd\u5e94<\/li>\n\n\n\nService<\/code> \u8d1f\u8d23\u4e1a\u52a1\u903b\u8f91<\/li>\n\n\n\nMapper<\/code> \/ Dao<\/code> \u8d1f\u8d23\u6570\u636e\u8bbf\u95ee<\/li>\n\n\n\n\n
\n
Controller<\/code> \u53ef\u4ee5\u6ce8\u5165 Root \u5bb9\u5668\u4e2d\u7684 Service<\/code><\/li>\n\n\n\nService<\/code> \u4e0d\u5e94\u8be5\u4f9d\u8d56 Web \u5bb9\u5668\u4e2d\u7684 Controller<\/code><\/li>\n<\/ul>\n\n\n\n\n
Controller<\/code> \u80fd\u6ce8\u5165 Service<\/code>\uff1f<\/p>\n<\/blockquote>\n\n\n\nController<\/code> \u5728\u5b50\u5bb9\u5668\u91cc\uff0cService<\/code> \u5728\u7236\u5bb9\u5668\u91cc\uff0c\u5b50\u5bb9\u5668\u67e5\u4e0d\u5230 Bean \u65f6\uff0c\u53ef\u4ee5\u7ee7\u7eed\u5411\u7236\u5bb9\u5668\u67e5\u627e\uff0c\u6240\u4ee5\u80fd\u591f\u6ce8\u5165\u6210\u529f\u3002<\/p>\n\n\n\n@Configuration\n@ComponentScan(\n value = \"com.cskaoyan\",\n excludeFilters = @ComponentScan.Filter({Controller.class, EnableWebMvc.class})\n)\npublic class RootConfiguration {\n}<\/code><\/pre>\n\n\n\n@Configuration\n@ComponentScan(\"com.cskaoyan.controller\")\n@EnableWebMvc\npublic class WebConfiguration implements WebMvcConfigurer {\n}<\/code><\/pre>\n\n\n\n@EnableWebMvc<\/code> \u505a\u4e86\u4ec0\u4e48<\/h3>\n\n\n\n@EnableWebMvc<\/code> \u53ef\u4ee5\u7406\u89e3\u4e3a\u201c\u542f\u7528 SpringMVC \u7684\u4e00\u5957\u6838\u5fc3\u57fa\u7840\u8bbe\u65bd\u201d\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n\n
RequestMappingHandlerMapping<\/code><\/li>\n\n\n\nRequestMappingHandlerAdapter<\/code><\/li>\n\n\n\n@EnableWebMvc<\/code> \u5c31\u662f\u5728\u63a5\u901a\u8fd9\u90e8\u5206\u80fd\u529b\u3002<\/p>\n\n\n\n\u7b2c\u4e00\u4e2a Controller<\/h3>\n\n\n\n
@Controller\npublic class HelloController {\n\n @RequestMapping(\"\/hello\")\n @ResponseBody\n public String hello() {\n return \"Hello SpringMVC\";\n }\n}<\/code><\/pre>\n\n\n\n\/hello<\/code>\uff0c\u8bf7\u6c42\u4f1a\u4ea4\u7ed9\u8fd9\u4e2a\u65b9\u6cd5\u5904\u7406\uff0c\u6700\u7ec8\u76f4\u63a5\u628a\u8fd4\u56de\u503c\u5199\u5230\u54cd\u5e94\u4f53\u4e2d\u3002<\/p>\n\n\n\n\u5c0f\u7ed3<\/h3>\n\n\n\n
\n
spring-webmvc<\/code><\/li>\n\n\n\nDispatcherServlet<\/code><\/li>\n\n\n\n@EnableWebMvc<\/code><\/li>\n\n\n\nController + @RequestMapping<\/code><\/li>\n<\/ol>\n\n\n\n@RequestMapping<\/code> \u6ce8\u89e3\u7684\u4f7f\u7528<\/h2>\n\n\n\n@RequestMapping<\/code> \u662f SpringMVC \u4e2d\u6700\u6838\u5fc3\u7684\u6ce8\u89e3\u4e4b\u4e00\u3002\u53ef\u4ee5\u76f4\u63a5\u8bf4\uff1a<\/p>\n\n\n\n\n
@RequestMapping<\/code>\u3002<\/p>\n<\/blockquote>\n\n\n\n\u6ce8\u89e3\u5b9a\u4e49\u8981\u70b9<\/h3>\n\n\n\n
@Target({ElementType.TYPE, ElementType.METHOD})\n@Retention(RetentionPolicy.RUNTIME)\npublic @interface RequestMapping {\n\n String name() default \"\";\n\n @AliasFor(\"path\")\n String[] value() default {};\n\n @AliasFor(\"value\")\n String[] path() default {};\n\n RequestMethod[] method() default {};\n String[] params() default {};\n String[] headers() default {};\n String[] consumes() default {};\n String[] produces() default {};\n}<\/code><\/pre>\n\n\n\n\n
value<\/code> \/ path<\/code>\uff1aURL \u8def\u5f84\u6620\u5c04<\/li>\n\n\n\nmethod<\/code>\uff1a\u8bf7\u6c42\u65b9\u6cd5\u9650\u5b9a<\/li>\n\n\n\nparams<\/code>\uff1a\u8bf7\u6c42\u53c2\u6570\u9650\u5b9a<\/li>\n\n\n\nheaders<\/code>\uff1a\u8bf7\u6c42\u5934\u9650\u5b9a<\/li>\n\n\n\nconsumes<\/code>\uff1a\u8bf7\u6c42\u4f53\u7c7b\u578b\u9650\u5b9a\uff0c\u5173\u6ce8 Content-Type<\/code><\/li>\n\n\n\nproduces<\/code>\uff1a\u54cd\u5e94\u7c7b\u578b\u9650\u5b9a\uff0c\u5173\u6ce8 Accept<\/code><\/li>\n<\/ul>\n\n\n\nURL \u8def\u5f84\u6620\u5c04
value<\/code><\/h3>\n\n\n\nvalue<\/code>\u3002\u5982\u679c\u53ea\u5199\u8fd9\u4e00\u4e2a\u5c5e\u6027\uff0c\u53ef\u4ee5\u7701\u7565\u5c5e\u6027\u540d\u3002<\/p>\n\n\n\n@RequestMapping(\"hello\")\n@ResponseBody\npublic String hello(String username) {\n return \"hello \" + username;\n}\n\n@RequestMapping(\"goodbye\")\n@ResponseBody\npublic String goodbye(String username) {\n return \"goodbye \" + username;\n}<\/code><\/pre>\n\n\n\nvalue<\/code> \u7684\u7c7b\u578b\u662f String[]<\/code>\uff0c\u6240\u4ee5\u4e5f\u53ef\u4ee5\u6620\u5c04\u591a\u4e2a\u5730\u5740\uff1a<\/p>\n\n\n\n@Controller\npublic class UrlMappingController {\n\n @RequestMapping({\"hello\", \"hi\", \"nihao\"})\n @ResponseBody\n public String hello() {\n return \"hello demo\";\n }\n\n @RequestMapping({\"goodbye*\", \"goodbye\/*\"})\n @ResponseBody\n public String goodbye() {\n return \"byebye\";\n }\n}<\/code><\/pre>\n\n\n\n\n
\u7a84\u5316\u8bf7\u6c42<\/h3>\n\n\n\n
@Controller\n@RequestMapping(\"user\")\npublic class UserController {\n\n @RequestMapping(\"query\")\n @ResponseBody\n public String query() {\n return \"user\/query\";\n }\n\n @RequestMapping(\"create\")\n @ResponseBody\n public String create() {\n return \"user\/create\";\n }\n\n @RequestMapping(\"remove\")\n @ResponseBody\n public String remove() {\n return \"user\/remove\";\n }\n\n @RequestMapping(\"modify\")\n @ResponseBody\n public String modify() {\n return \"user\/modify\";\n }\n}<\/code><\/pre>\n\n\n\n\n
\u8bf7\u6c42\u65b9\u6cd5\u9650\u5b9a
method<\/code><\/h3>\n\n\n\ndoGet()<\/code>\u3001doPost()<\/code> \u533a\u5206\u8bf7\u6c42\u65b9\u6cd5\uff1bSpringMVC \u9636\u6bb5\u6539\u6210\u5728\u6ce8\u89e3\u91cc\u58f0\u660e\u3002<\/p>\n\n\n\n@Controller\n@RequestMapping(\"method\")\npublic class RequestMethodLimitController {\n\n @RequestMapping(value = \"get\", method = RequestMethod.GET)\n @ResponseBody\n public String methodGet() {\n return \"Method GET\";\n }\n\n @RequestMapping(value = \"post\", method = RequestMethod.POST)\n @ResponseBody\n public String methodPost() {\n return \"Method POST\";\n }\n\n @RequestMapping(value = \"double\", method = {RequestMethod.GET, RequestMethod.POST})\n @ResponseBody\n public String methodDouble() {\n return \"Method GET OR Method POST\";\n }\n}<\/code><\/pre>\n\n\n\n\u5feb\u6377\u6ce8\u89e3<\/h3>\n\n\n\n
\u6ce8\u89e3<\/th> \u7b49\u4ef7\u5f62\u5f0f<\/th><\/tr><\/thead> @GetMapping<\/code><\/td>@RequestMapping(method = RequestMethod.GET)<\/code><\/td><\/tr>@PostMapping<\/code><\/td>@RequestMapping(method = RequestMethod.POST)<\/code><\/td><\/tr>@PutMapping<\/code><\/td>@RequestMapping(method = RequestMethod.PUT)<\/code><\/td><\/tr>@DeleteMapping<\/code><\/td>@RequestMapping(method = RequestMethod.DELETE)<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n@RestController\n@RequestMapping(\"\/api\/users\")\npublic class UserApiController {\n\n @GetMapping\n public List<User> list() {\n return userService.list();\n }\n\n @GetMapping(\"\/{id}\")\n public User detail(@PathVariable Integer id) {\n return userService.getById(id);\n }\n\n @PostMapping\n public User create(@RequestBody User user) {\n return userService.save(user);\n }\n}<\/code><\/pre>\n\n\n\n\u8bf7\u6c42\u53c2\u6570\u9650\u5b9a
params<\/code><\/h3>\n\n\n\nparams<\/code> \u9002\u5408\u9650\u5236\u5fc5\u987b\u643a\u5e26\u54ea\u4e9b key=value \u53c2\u6570\u3002<\/p>\n\n\n\n@Controller\n@RequestMapping(\"params\")\npublic class ParameterLimitController {\n\n @RequestMapping(value = \"login\", params = {\"username\", \"password\"})\n @ResponseBody\n public String login() {\n return \"ok\";\n }\n}<\/code><\/pre>\n\n\n\nusername<\/code>\uff0c\u4e5f\u8981\u6709 password<\/code>\u3002<\/p>\n\n\n\n\u8bf7\u6c42\u5934\u9650\u5b9a
headers<\/code><\/h3>\n\n\n\nheaders<\/code> \u9650\u5236\u7684\u662f\u8bf7\u6c42\u5934\u91cc\u7684 key\u3002<\/p>\n\n\n\n