Spring4.3中引进了{@GetMapping、@PostMapping、@PutMapping、@DeleteMapping、@PatchMapping} 来帮助简化常用的HTTP方法的映射 并更好地表达被注解方法的语义 该注解将HTTP Get 映射到 特定的处理方法上 @GetMapping是一个组合注解 是@RequestMapping(method = RequestMethod.GET)的缩写 @PostMapping是一个组合注解 是@...
1. 查询参数(Query Parameters) 查询参数通常用于GET请求,通过URL的查询字符串传递。在Spring Boot中,我们可以使用@RequestParam注解轻松获取这些参数。 后端接口: 代码语言:java AI代码解释 @GetMapping("/resource") public String getResource(@RequestParam String name) { return "Hello, " + name; } 2. 路径...
MethodParameter[] parameters = getMethodParameters(); //创建一个参数数组,保存从request解析出的方法参数 Object[] args = new Object[parameters.length]; for (int i = 0; i < parameters.length; i++) { MethodParameter parameter = parameters[i]; //给每一个Controller方法实例参数初始化一个参数名...
验证请求参数(Path Variables 和 Request Parameters) Controller: 一定一定不要忘记在类上加上 Validated 注解了,这个参数可以告诉 Spring 去校验方法参数。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 @RestController @RequestMapping("/api") @Validated public class PersonController { @GetMapping("/person...
@GetMapping(value = "foos/duplicate") public String duplicateEx() { return "Duplicate"; } 1. 2. 3. 4. 5. 6. 7. 8. 抛出的异常包含以下错误信息: Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'fooMappingExamplesController' method ...
@GetMapping @PostMapping @PutMapping @DeleteMapping @PatchMapping For example, the following code demonstrates the usage of@GetMappingand@PostMapping. REST Controller Methods with More Specific Annotations @GetMapping(value="/users")publicUsersgetUsers(){...}@GetMapping(value="/users/{id}")publicUse...
其实代码逻辑走到了这里,找到对应的handler就已经够用了// 其实自己也可以自己来做一个简单版本的springMVC了,加上注解来进行扫描即可。if(matches.isEmpty()) {// No choice but to go through all mappings...addMatchingMappings(this.mappingRegistry.getMappings().keySet(), matches, request);...
@GetMapping("/users")publicStringgetUsers(@RequestParam(name="name")Stringusername){//...} 2.2. Collecting Multiple Parameters and Values in aMap Consider the URL:http://localhost:8080/users/{id}/{name}/accounts?type=current&status=active. Similarly, there can be N number of path variables ...
package com.rainbowsea.springmvc.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind...
ok(userDTO); } // 查询参数 @GetMapping("getByAccount") public Result getByAccount(@Length(min = 6, max = 20) @NotNull String account) { // 校验通过,才会执行业务逻辑处理 UserDTO userDTO = new UserDTO(); userDTO.setUserId(10000000000000003L); userDTO.setAccount(account); userDTO.set...