Question

我正在研究Spring Guides教程：使用Spring构建Rest服务。

我遵循了本文内容，并在教程中输入了代码。

我到达了启动服务（在本地计算机上）并使用CURL命令进行测试的部分。

GET工作正常：

Curl -v localhost:8080/employees

返回期望的列表

[{"id":1,"name":"Bilbo Baggins","role":"burglar"},{"id":2,"name":"Frodo Baggins","role":"thief"}]

但是当我执行时：

curl -X POST localhost:8080/employees -H 'Content-type:application/json' -d '{"name": "Samwise Gamgee", "role": "gardener"}'

我得到：

{"timestamp":"2018-11-08T20:55:49.844+0000","status":415,"error":"Unsupported Media Type","message":"Content type 'application/x-www-form-urlencoded;charset=UTF-8' not supported","path":"/employees"}

这是控制器代码

package com.mainsworth.payroll;

import java.util.List;
import org.springframework.web.bind.annotation.DeleteMapping;
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.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

 @RestController

 class EmployeeController {
     private final EmployeeRepository repository;
     EmployeeController(EmployeeRepository repository) {
         this.repository = repository;
    }

@GetMapping("/employees")
List<Employee>all() {
    return repository.findAll();
}

@PostMapping("/employees")
Employee newEmployee(@RequestBody Employee newEmployee) {
    return repository.save(newEmployee);
}

//Single item
@GetMapping("/employees/{id}")
Employee one(@PathVariable Long id) {
    return repository.findById(id)
            .orElseThrow(()-> new EmployeeNotFoundException(id));
}

@PutMapping("/employees/{id}")
Employee replaceEmployee(@RequestBody Employee newEmployee,
                         @PathVariable Long id ) {
    return repository.findById(id)
            .map(employee -> {
                employee.setName(newEmployee.getName());
                employee.setRole(newEmployee.getRole());
                return repository.save(employee);
            })
            .orElseGet(() -> {
                newEmployee.setId(id);
                return repository.save(newEmployee);
            });

}
@DeleteMapping("/employees/{id}")
void deleteEmployee(@PathVariable Long id) {
    repository.deleteById(id);
}

}

我听了卡罗尔和杰斯珀的建议。感谢双方的快速响应。我的新Curl是：

curl -X POST  localhost:8080/employees -H 'Content-Type: application/json' -H 'Accept: application/json' -d '{"name": "Samwise Gamgee","role": "gardener"}'

我的新回复是：

{"timestamp":"2018-11-08T22:49:01.900+0000","status":415,"error":"Unsupported Media Type","message":"Content type 'application/x-www-form-urlencoded;charset=UTF-8' 
not supported","path":"/employees"}application
curl: (6) Could not resolve host: application

curl: (6) Could not resolve host: Samwise Gamgee,role

curl: (3) [globbing] unmatched close brace/bracket in column 9

Answer 1

同时指定Content-Type: application/json和Accept: application/json请求标头，因为您的端点正在使用和生成数据。

curl -H 'Content-Type: application/json' -H 'Accept: application/json' ...

Answer 2

在本教程中，这也在我这边发生： https://spring.io/guides/tutorials/rest/

奇怪的是，在Linux OS上却没有发生。我仔细检查了Linux，一切都很好。

解决方案（示例）： 相反：

curl -X POST localhost:8080/employees -H 'Content-type:application/json' -d '{"name": "Samwise Gamgee", "role": "gardener"}'

使用：

curl -X POST localhost:8080/employees -H "Content-type:application/json" -d "{\"name\": \"Samwise Gamgee\", \"role\": \"gardener\"}"

总结：将所有的'更改为“，然后在正文中添加\

希望对您有帮助！

芬果

Answer 3

除了上述可行的答案之外，我还想让人们意识到与Springboot 2相关的该教程代码中的一个小错误。

遵循这里描述的卷曲建议后，我得到了405。

我发现需要对注释进行细微调整：

@PostMapping(value="/employees",produces = "application/json")
Employee newEmployee(@RequestBody Employee newEmployee) {
return repository.save(newEmployee);
}

请注意，需要使用产生的标志来使其正确响应，以免出现405。与curl命令结合使用时：

curl -i -H "Content-Type: application/json" -H "Accept: application/json" -X POST -d "{\"name\": \"Samwise Gamgee\", \"role\": \"gardener\"}" http://localhost:8080/employees

从JetBrains IDE（Windows）进行POST时无法使用卷曲

3 个答案: