hjr-JAVA：JAVA与PHP互相跨域接口编写与访问

最新推荐文章于 2022-09-07 09:40:23 发布

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最新推荐文章于 2022-09-07 09:40:23 发布

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分类专栏： JAVA 文章标签： php java 跨域

本文链接：https://blog.youkuaiyun.com/hjrcrj/article/details/65447167

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本文介绍了如何使用JAVA和PHP编写API接口，并演示了不同语言间接口调用的方法，包括解决跨域问题。

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#JAVA写接口
JAVA一般先编写个数据Model

	@ResponseBody //表示返回的是json对象
	@RequestMapping(value="/xxx", method = RequestMethod.GET)
	public Map<String,Object> xxx(Model model) {
		Map<String,Object> returnMsg = new HashMap<String,Object>();
		String str=new String("访问JAVA接口返回数据".getBytes("iso-8859-1"),"utf-8");//避免返回数据乱码
		returnMsg.put("msg",str );
		return returnMsg; 
	}

#PHP写接口

<?php
	$myArray=array("xx"=>"xx");
	$myArray["xxx"]="xxx";
	echo json_encode($myArray); 
?>

#PHP跨域访问JAVA

<?php
    function getHttpResponseGET($url) {
        $curl = curl_init($url);
        curl_setopt($curl, CURLOPT_HEADER, 0 ); 
        curl_setopt($curl,CURLOPT_RETURNTRANSFER, 1);
        $responseText = curl_exec($curl);
        curl_close($curl);
        return $responseText;
    }
	$hanzi = rawurlencode("汉字");  //传汉字需要先编码
    $url = 'http://xxx.xxx.xxx.xx/xx/xx/xx?xx=xxx&xx=xxx';
    var_dump($url);
    
    $responseText = getHttpResponseGET($url);
	$obj=json_decode($responseText);
	
	var_dump($responseText);
	echo $obj->xxx;	
?>

#JAVA跨域访问PHP

		<!--http请求-->
		<dependency>
			<groupId>commons-httpclient</groupId>
			<artifactId>commons-httpclient</artifactId>
			<version>3.1</version>
		</dependency>

		public static Map<String, String> KuaYu(String url,Map<String , String> map){

		Map<String, String> reMap = new HashMap<String, String>();
		try{
			if(map.size() == 0){
				reMap.put("outResult", "0");
				reMap.put("outResultReason", "无数据需要发送");
				return reMap;
			}
			HttpClient client = new HttpClient();
			//返回结果集
			JSONObject jsonObjectResult = new JSONObject();
			PostMethod postMethod = new PostMethod(url);
			client.getParams().setSoTimeout(15000);
			//Part[] parts = { new StringPart("accNumber", "13816032072"),new StringPart("password", "000000")}
			Part[] parts = new Part[map.size()];
			Map<String , String> mapParas = map;
			int i =0;
			for(Map.Entry<String, String> entry : mapParas.entrySet()){
				parts[i] = new StringPart(entry.getKey().trim(), entry.getValue().trim());
				i++;
			}
			//对于MIME类型的请求，httpclient建议全用MulitPartRequestEntity进行包装
			MultipartRequestEntity mre = new MultipartRequestEntity(parts, postMethod.getParams());
			postMethod.setRequestEntity(mre);
			//执行请求，返回状态码
			int status = client.executeMethod(postMethod);
			if (status == HttpStatus.SC_OK) {
				String result = postMethod.getResponseBodyAsString();
				result = new String(result.getBytes("ISO-8859-1"),"UTF-8");//汉字需要编码成UTF-8
				jsonObjectResult = JSONObject.parseObject(result);
				for(String key:jsonObjectResult.keySet()){
					reMap.put(key,jsonObjectResult.get(key).toString());
				}
				
			} else {
//              接口请求失败。
				reMap.put("outResult", "0");
				reMap.put("outResultReason", "请求失败。");
			}
		}catch(Exception e){
			e.printStackTrace();
			reMap.put("outResult", "0");
			reMap.put("outResultReason", "请求超时。");
		}
		return reMap;
	}

调用：


	Map<String , String> map = new HashMap<String , String>();
	map.put("xxx", "xxx");  
	map.put("xxx", "xxx");  
	String url = "http://xxx.xxx.xxx/xxx/xxx";	
	Map<String, String> mapResult = UrlUtil.KuaYu(url, map);