API

<script type="text/javascript" language="javascript">
        $(function() {
            $("#crateTable").click(function() {
            	var jsonVal = '{"tableComment": "测试数据sj","product": "globalhao123","data":'+ 
														'[{"column": "ctime","type": "DATETIME","comment": "时间"},'+
														'{"column": "name","type": "varchar","comment": "姓名"},'+
														'{"column": "type","type": "bigint","comment": "类型"},'+
														'{"column": "num","type": "decimal","comment": "数值"}]}';
                $.ajax({
                	  type : 'POST',
										url : 'http://localhost:8080/api/etlservice/createTable',
										dataType : 'json',
										data : {json:jsonVal},
                    beforeSend: function(request) {
                    	//设置头信息
                        request.setRequestHeader("_product_line_", "HABO");
						            request.setRequestHeader("_secret_key_", "123456");
						            request.setRequestHeader("_username_", "heshenmi");
						            request.setRequestHeader("_password_", "admin");
                    },
                    success: function(result) {
                        alert(result.code);
                    }
                });
            });
        });
    </script>

　　

@Controller
@RequestMapping("/api/etlservice")
public class EtlController {
	private static final Log log = LogFactory.getLog(EtlController.class);
	@Autowired
	private EtlService etl ;
	@RequestMapping(value = "/createTable", method = RequestMethod.POST)
	@ResponseBody
	public ModelMap createTable(@RequestParam(value = "json", required = true) String json) {
		log.info("createTable Json :"+json);
		try {
			etl.createTable(getEtlConfigByJson(json));
		} catch (Exception ex) {
			log.error("createTable failed：", ex);
			return Results.failure("创建表失败：" + ex.getMessage());
		}
		log.info("createTable success");
		return Results.success("创建表成功");
	}

　　request

package demo;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

public class HttpRequest {
    /**
     * 向指定URL发送GET方法的请求
     * 
     * @param url
     *            发送请求的URL
     * @param param
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @return URL 所代表远程资源的响应结果
     */
    public static String sendGet(String url, String param) {
        String result = "";
        BufferedReader in = null;
        try {
            String urlNameString = url + "?" + param;
            URL realUrl = new URL(urlNameString);
            // 打开和URL之间的连接
            URLConnection connection = realUrl.openConnection();
            // 设置通用的请求属性
            connection.setRequestProperty("_product_line_", "333");
            connection.setRequestProperty("_secret_key_", "3333");
            connection.setRequestProperty("_username_", "3333");
            connection.setRequestProperty("_password_", "3333");
            
            //connection.setRequestProperty("accept", "*/*");
            //connection.setRequestProperty("connection", "Keep-Alive");
            //connection.setRequestProperty("user-agent",
              //      "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 建立实际的连接
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            //for (String key : map.keySet()) {
             //   System.out.println(key + "--->" + map.get(key));
            //}
            // 定义 BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(
                    connection.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送GET请求出现异常！" + e);
            e.printStackTrace();
        }
        // 使用finally块来关闭输入流
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }

    /**
     * 向指定 URL 发送POST方法的请求
     * 
     * @param url
     *            发送请求的 URL
     * @param param
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @return 所代表远程资源的响应结果
     */
    public static String sendPost(String url, String param) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection conn = realUrl.openConnection();
            // 设置通用的请求属性
            conn.setRequestProperty("_product_line_", "333");
            conn.setRequestProperty("_secret_key_", "3333");
            conn.setRequestProperty("_username_", "333");
            conn.setRequestProperty("_password_", "3333");
            
//            conn.setRequestProperty("accept", "*/*");
//            conn.setRequestProperty("connection", "Keep-Alive");
//            conn.setRequestProperty("user-agent",
//                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            // 发送请求参数
            out.print(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！"+e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }
        return result;
    }    
}

　　APITest

package demo;

import junit.framework.TestCase;


public class APITest extends TestCase{
	 public void createTable(){
		//发送 GET 请求
	    //String s=HttpRequest.sendGet("http://localhost:8080/api/demo/message", "json=product");
	    //System.out.println(s);
	    //发送 POST 请求
		String createTableJson = "{"tableComment": "测试数据sj","product": "globalhao123","data": "+
				"[{"column": "ctime","type": "DATETIME","comment": "时间"},"+
				"{"column": "name","type": "varchar","comment": "姓名"},"+
				"{"column": "type","type": "bigint","comment": "类型"},"+
				"{"column": "num","type": "decimal","comment": "数值"}]}";
	    String createTable=HttpRequest.sendPost("http://localhost:8080/api/etlservice/createTable", "json="+createTableJson);
		System.out.println(createTable);
	 }
	public void insertData(){
		String insertDataJson = "{"table": "globalhao123_crm_view_etl_1","ctimes": "2016-08-24 00:00:00,2016-08-25 00:00:00","
				+ ""data": ["
				+ "{"ctime": "2016-08-24 00:00:00","name": "黎明","type": "1","num": "2.11"},"
				+ "{"ctime": "2016-08-25 00:00:00","name": "大熊","type": "4","num": "4"}]}";
	    String insertData =HttpRequest.sendPost("http://localhost:8080/api/etlservice/insertData", "json="+insertDataJson);
	    System.out.println(insertData);
	}
	public void deleteData(){
		String deleteDataJson = "{"table": "globalhao123_crm_view_etl_1","ctimes": "2016-08-24 00:00:00,2016-08-25 00:00:00"}";
	    String deleteData=HttpRequest.sendPost("http://localhost:8080/api/etlservice/deleteData", "json="+deleteDataJson);
	    System.out.println(deleteData);
	}
}

　　spring mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
        <property name="alwaysUseFullPath" value="true" />
        <property name="interceptors">
            <list>
                <bean class="com.baidu.sigma.api.AuthenticationInterceptor" />
            </list>
        </property>
    </bean>
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="alwaysUseFullPath" value="true" />
        <property name="messageConverters">
            <list>
                <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />
            </list>
        </property>
    </bean>
    <context:component-scan base-package="com.baidu.sigma.api" />

</beans>
/**
 * 
 */
package com.baidu.sigma.api;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
public class AuthenticationInterceptor implements HandlerInterceptor {

    private static final Log log = LogFactory.getLog(AuthenticationInterceptor.class);

    @Autowired
    private ProductLineService productLineService;
    @Autowired
    private LoginService  loginService;

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String prod = RequestHelper.getProductLine(), key = RequestHelper.getSecretKey(),username=RequestHelper.getUserName(),password=RequestHelper.getPassword();
        boolean handled = false;
        if (prod == null || prod.isEmpty() || key == null || key.isEmpty()) {
            handled = true;
        } else {
            ProductLine product = productLineService.getProductLine(prod);
            if (product == null || !key.equals(product.getApiKey())) {
                handled = true;
            }
        }
        //添加用户名验证
        if (username == null || username.isEmpty() || password == null || password.isEmpty()) {
            handled = true;
        } else {
            Map <String ,String > userMap = new HashMap <String ,String> ();
            userMap.put("name",username);
            userMap.put("pwd", password);
            User user = loginService.validateUser(userMap);
            if(user == null ){
                handled = true;
            }
        }
        if (handled) {
            log.warn("product line [" + prod + "] or " + "secret key [" + key + "] is illegal");
            response.setContentType("application/json;charset=UTF-8");
            response.getWriter().write(Results.message(Results.CODE_AUTHENTICATION_FAILED, "权限认证失败").toString());
            return false;
        }
        log.info(String.format("[%s] invoke api %s", prod, request.getRequestURI()));
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
            ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
            throws Exception {

    }

}

 http://www.iteye.com/topic/1143043

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原文地址：https://www.cnblogs.com/sj521/p/6143878.html