spring boot 请求 rest 服务

小鱼儿 2022-05-19 02:49 335阅读 0赞

springboot 环境搭建不多讲，直接代码

## 配置 ##

在启动类里加入如下配置

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@Autowired
        private RestTemplateBuilder builder;
    
    	// 使用RestTemplateBuilder来实例化RestTemplate对象，spring默认已经注入 RestTemplateBuilder
    	@Bean
    	public RestTemplate restTemplate() {
    		return builder.build();
    	}

接下里是controller类里注入RestTemplate

@Autowired
      private RestTemplate restTemplate;

## 代码测试 ##

这里看一下，底下用来测试的实体类

@Data
    @Component
    public class Device {
    
        private Integer id;
    
        private String type;
    
        private String manufactor;  //生产厂家
    
        @JsonFormat(shape=JsonFormat.Shape.STRING, pattern="yyyy-MM-dd'T'HH:mm:ss+0800",timezone = "GMT+8:00")
        private Date registerTime;
    
    }

如下是详细的增删改查的调用，前面的path变量是我设置一个rest路径，这里自行改

/*
            查询某个设备信息
         */
        @GetMapping("/getDevice/{id}")
        public String getDevice(@PathVariable int id){
            String forObject = restTemplate.getForObject(path+"/device/"+ id +"?at=asILk9y2JB4bxh311DIKMr2Oaif1L6pn", String.class);
            return forObject;
        }
        /*
            http://127.0.0.1:8181/cxf/device?at=Jshb9jiOa4hi240POyOP58g4OHHBQ2sF
            添加设备 post 请求
         */
        @PostMapping("/addDevice")
        public String addDevice(@Valid Device device){
            Device body = restTemplate.postForEntity(path+"/device?at=asILk9y2JB4bxh311DIKMr2Oaif1L6pn",
                    device, Device.class).getBody();
            return body.toString();
        }
    
        /*
            修改
         */
        @PutMapping("/updateDevice")
        public String updateDevice(@Valid Device device){
            restTemplate.put(path+"/cxf/device/"+ device.getId() +"?at=asILk9y2JB4bxh311DIKMr2Oaif1L6pn",device);
            return "修改成功";
        }
    
        /*
            删除
         */
        @DeleteMapping("/delDevice/{id}")
        public String delDevice(@PathVariable int id){
           restTemplate.delete(path+"/device/"+ id +"?at=asILk9y2JB4bxh311DIKMr2Oaif1L6pn");
            return "删除成功";
        }

## postman请求参数配置 ##

LZ用的是postman测试，顺便贴一下post请求和put请求的参数设置，用很多种形式，我这里只是随便选了一种

put请求

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![C:\\Users\\yifeng\\Desktop\\put.png][C_Users_yifeng_Desktop_put.png]

post请求

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![C:\\Users\\yifeng\\Desktop\\post.png][C_Users_yifeng_Desktop_post.png]

headers 设置，这里LZ2种请求都是一样

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![C:\\Users\\yifeng\\Desktop\\headers.png][C_Users_yifeng_Desktop_headers.png]

[C_Users_yifeng_Desktop_put.png]: /images/20220519/93aa0e429bd74296af311feec7a5fe7c.png
[C_Users_yifeng_Desktop_post.png]: /images/20220519/f47985b4be1c4e2e8dfa431a04cf2862.png
[C_Users_yifeng_Desktop_headers.png]: /images/20220519/b33b89fcb59542b7add9db4ded58b90e.png