# noark-http-demo

**Repository Path**: xiaoe/noark-http-demo

## Basic Information

- **Project Name**: noark-http-demo
- **Description**: 使用Noark起一个只有HTTP功能的示例
- **Primary Language**: Java
- **License**: MulanPSL-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2021-10-30
- **Last Updated**: 2021-11-06

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# noark-http-demo

#### 介绍
使用Noark起一个只有HTTP功能的示例


### 无参示例
```java
@ResponseBody
@GetMapping(path = "/")
public String index() {
    return "welcome to noark http service...";
}
```
访问：http://127.0.0.1:8080/

响应：
```text
welcome to noark http service...
```

### 常规参数示例
```java
@ResponseBody
@GetMapping(path = "/hello.php")
public String hello(@RequestParam(name = "name") String name, @RequestParam(name = "age", required = false, defaultValue = "18") int age) {
    return "hello " + name + ", age=" + age;
}
```
访问：http://127.0.0.1:8080/hello.php?name=dada

响应：
```text
hello dada, age=18
```

访问：http://127.0.0.1:8080/hello.php?name=dada&age=123

响应：
```text
hello dada, age=123
```

### 注入request对象示例
```java
@ResponseBody
@GetMapping(path = "/hello.aspx")
public String hello(HttpServletRequest request){
    StringBuilder sb=new StringBuilder();
    sb.append("URI:\t\t").append(request.getUri()).append("\n");
    sb.append("method:\t\t").append(request.getMethod()).append("\n");
    sb.append("IP:\t\t").append(request.getRemoteAddr()).append("\n");

    sb.append("parameter----------").append("\n");
    Enumeration<String> names=request.getParameterNames();
    while(names.hasMoreElements()){
        String key=names.nextElement();
        sb.append(key).append("\t\t").append(request.getParameter(key)).append("\n");
    }
}
```
访问：http://127.0.0.1:8080/hello.aspx?a=1&b=2&c=&ddd

响应：
```text
URI:		/hello.aspx
method:		GET
IP:		127.0.0.1
parameter----------
a		1
b		2
c		
ddd	
```

### 注入对象示例
```java
@ResponseBody
@GetMapping(path = "/hello.jsp")
public String hello(@RequestParam(name = "item") SimpleItem item) {
    return "code=" + item.getCode() + ",num=" + item.getNum();
}
```
这里的SimpleItem为自定义对象，需要为他编写转化器，其实就是写个切割字符串后new个新对象并赋值
```java
@TemplateConverter(SimpleItem.class)
public class SimpleItemConverter extends AbstractConverter<SimpleItem> {

    @Override
    public String buildErrorMsg() {
        return "格式不对噢...例>>道具编号:数量";
    }

    @Override
    protected SimpleItem convert(String value) throws Exception {
        String[] array = value.split(":", 2);
        return new SimpleItem(array[0], Integer.parseInt(array[1]));
    }
}
```

访问： http://127.0.0.1:8080/hello.jsp?item=qianghuashi:100
响应：
```text
code=qianghuashi,num=100
```


如果参数是JSON格式的，请看下面的示例

### POST请求JSON格式的参数示例
```java
@ResponseBody
@PostMapping(path = "/hello.do")
public String postJson(@RequestParam(name = "code") String code, @RequestParam(name = "num") int num) {
    return "code=" + code + ", num=" + num;
}
```
请求
```java
HashMap<String, String> requestProperty = MapUtils.of("Content-Type", "application/json");
String result = HttpUtils.post("http://127.0.0.1:8080/hello.do", JSON.toJSONString(new SimpleItem("XXX", 123)), requestProperty);
System.out.println(result);
```
响应
code=XXX, num=123

这里的头部参数 "Content-Type", "application/json" 这个很重要，是要通知服务器，我使用的是什么格式


### 最后一种常用的方案，POST的内容是一个JSON

```java
@ResponseBody
@PostMapping(path = "/hello.action")
public String postContent(@RequestBody String jwtToken) {
    return "jwtToken=" + jwtToken;
}
```

请求
```java
// 这里要注意，请求方的content-type没有才可以使用此方法
HashMap<String, String> requestProperty = MapUtils.of("Content-Type", "");
String result = HttpUtils.post("http://127.0.0.1:8080/hello.action", JSON.toJSONString(new SimpleItem("XXX", 123)), requestProperty);
System.out.println(result);
```

响应
```text
jwtToken={"code":"XXX","num":123}
```

最后这个注解需要版本是3.4.4.Final以上噢~~~~