目錄

Postman

Postman簡(jiǎn)介?

Postman的使用?

請(qǐng)求

簡(jiǎn)單參數(shù)?

?實(shí)體參數(shù)

?數(shù)組參數(shù)

?集合參數(shù)

?日期參數(shù)

Json參數(shù)

路徑參數(shù)?

?響應(yīng)

@ResponseBody?

統(tǒng)一響應(yīng)結(jié)果

---

Postman

Postman簡(jiǎn)介?

postman是一款功能強(qiáng)大的網(wǎng)頁(yè)調(diào)試與發(fā)送網(wǎng)頁(yè)http請(qǐng)求的Chrome插件，常用于進(jìn)行接口測(cè)試。

Postman的使用?

先創(chuàng)建用戶?

?之后通過剛剛創(chuàng)建的用戶登錄

創(chuàng)建工作空間

?

?創(chuàng)建完成后他會(huì)自動(dòng)進(jìn)入到springbootweb工作空間

點(diǎn)擊+添加新請(qǐng)求

請(qǐng)求

?pom.xml文件如下

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.4</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.he1220</groupId><artifactId>demo</artifactId><version>0.0.1-SNAPSHOT</version><name>demo</name><description>Demo project for Spring Boot</description><properties><java.version>11</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

簡(jiǎn)單參數(shù)?

以原始的方式接收請(qǐng)求參數(shù)?

?目錄結(jié)構(gòu)如下

RequestController.java文件內(nèi)容如下

package com.he1220.demo.controller;import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import javax.servlet.http.HttpServletRequest;@RestController
public class RequestController {@RequestMapping("/simpleParam")public String simpleParam(HttpServletRequest request){String name = request.getParameter("name");String age = request.getParameter("age");System.out.println(name);System.out.println(age);return "ok";}
}

測(cè)試結(jié)果如下

?以SpringBoot的方式接收請(qǐng)求參數(shù)

package com.he1220.demo.controller;import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
public class RequestController {@RequestMapping("/simpleParam")public String simpleParam(String name,Integer age){System.out.println(name);System.out.println(age);return "ok";}
}

如果方法形參名稱與請(qǐng)求參數(shù)名稱不匹配，可以通過@RequestParam注解完成映射

通過name屬性指定請(qǐng)求參數(shù)名

@RequestParam中的Required屬性默認(rèn)為true，該請(qǐng)求參數(shù)必須傳遞，不傳遞將報(bào)錯(cuò)(400)?？梢栽O(shè)置為false

package com.he1220.demo.controller;import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;@RestController
public class RequestController {@RequestMapping("/simpleParam")public String simpleParam(@RequestParam(name="name")String username,Integer age){System.out.println(username);System.out.println(age);return "ok";}
}

?實(shí)體參數(shù)

需要保證請(qǐng)求參數(shù)名與形參對(duì)象屬性名一致

?目錄結(jié)構(gòu)如下

RequestController.java內(nèi)容如下?

package com.he1220.demo.controller;import com.he1220.demo.pojo.User;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
public class RequestController {@RequestMapping("/Pojo")public String Pojo(User user){System.out.println(user);return "ok~";}
}

User.java內(nèi)容如下

package com.he1220.demo.pojo;public class User{private String name;private String age;private Add add;public User(String name, String age) {this.name = name;this.age = age;}public Add getAdd() {return add;}public String getName() {return name;}public String getAge() {return age;}public void setAge(String age) {this.age = age;}public void setName(String name) {this.name = name;}public void setAdd(Add add) {this.add = add;}@Overridepublic String toString() {return "User{" +"name='" + name + '\'' +", age='" + age + '\'' +", add=" + add +'}';}
}

?Add.java內(nèi)容如下

package com.he1220.demo.pojo;public class Add {private String province;private String city;public String getProvince() {return province;}public void setProvince(String province) {this.province = province;}public String getCity() {return city;}public void setCity(String city) {this.city = city;}@Overridepublic String toString() {return "Add{" +"province='" + province + '\'' +", city='" + city + '\'' +'}';}
}

測(cè)試結(jié)果如下

?數(shù)組參數(shù)

?RequestController.java內(nèi)容如下?

package com.he1220.demo.controller;import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.Arrays;@RestController
public class RequestController {@RequestMapping("/arrParam")public String arrParam(String[] hobby){System.out.println(Arrays.toString(hobby));return "ok~";}
}

測(cè)試結(jié)果如下

?

?集合參數(shù)

需要保證請(qǐng)求的參數(shù)名與集合變量名相同，通過@RequestParam注解綁定參數(shù)關(guān)系

?RequestController.java內(nèi)容如下??

package com.he1220.demo.controller;import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;@RestController
public class RequestController {@RequestMapping("/listParam")public String listParam(@RequestParam List<String> hobby){System.out.println(hobby);return "ok~";}
}

?日期參數(shù)

使用@DateTimeFormat 注解完成日期參數(shù)格式轉(zhuǎn)換?

package com.he1220.demo.controller;import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import java.time.LocalDateTime;@RestController
public class RequestController {@RequestMapping("/dateParam")public String dateParam(@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") LocalDateTime updateTime){System.out.println(updateTime);return "ok~";}

Json參數(shù)

通過@RequestBody注解將Json對(duì)象封裝到實(shí)體類當(dāng)中?

package com.he1220.demo.controller;import com.he1220.demo.pojo.User;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
public class RequestController {@RequestMapping("/jsonParam")public String jsonParam(@RequestBody User user){System.out.println(user);return "ok~";}
}

路徑參數(shù)?

?通過請(qǐng)求URL直接傳遞參數(shù)，使用{...}來標(biāo)識(shí)該參數(shù)路徑，需要使用@PathVariable獲取參數(shù)路徑

@RestController
public class RequestController {@RequestMapping("/path/{id}/{name}")public String pathParam(@PathVariable Integer id,@PathVariable String name){System.out.println(id + name);return "ok~";}
}

?響應(yīng)

@ResponseBody?

放在Controller方法上/類上

將方法返回值直接響應(yīng)，如果返回值類型是實(shí)體對(duì)象/集合,將會(huì)轉(zhuǎn)換為JSON格式響應(yīng)

@RestController = @Controller + @ResponseBody

統(tǒng)一響應(yīng)結(jié)果

目錄結(jié)構(gòu)如下

?pojo.Result.java文件內(nèi)容如下?

package com.he1220.demo.pojo;/*** 統(tǒng)一響應(yīng)結(jié)果封裝類*/
public class Result {private Integer code ;//1 成功 , 0 失敗private String msg; //提示信息private Object data; //數(shù)據(jù) datapublic Result() {}public Result(Integer code, String msg, Object data) {this.code = code;this.msg = msg;this.data = data;}public Integer getCode() {return code;}public void setCode(Integer code) {this.code = code;}public String getMsg() {return msg;}public void setMsg(String msg) {this.msg = msg;}public Object getData() {return data;}public void setData(Object data) {this.data = data;}public static Result success(Object data){return new Result(1, "success", data);}public static Result success(){return new Result(1, "success", null);}public static Result error(String msg){return new Result(0, msg, null);}@Overridepublic String toString() {return "Result{" +"code=" + code +", msg='" + msg + '\'' +", data=" + data +'}';}
}

?RequestController.class內(nèi)容如下??

package com.he1220.demo.controller;import com.he1220.demo.pojo.Add;
import com.he1220.demo.pojo.Result;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
public class RequestController {@RequestMapping("/getAddr")public Result getAddr(String province, String city){System.out.println(province);System.out.println(city);Add addr = new Add();addr.setProvince(province);addr.setCity(city);return Result.success(addr);}
}

測(cè)試結(jié)果如下

???????