SpringMVC实战（五）-处理POST提交JSON数据

1.表单提交

2.JSON串

1、客户端请求

        String url = "http://localhost:8080/order/create";        String data = "{\"id\":3, \"category\":\"IT数码\"}";        try {            String result = HttpUtils.post(url, data);            System.out.println("result:"+result);        } catch (Exception e) {            e.printStackTrace();        }

HttpUtils.java

package com.yirendai.rulebase.node.util;import org.apache.http.HttpEntity;import org.apache.http.HttpStatus;import org.apache.http.client.config.RequestConfig;import org.apache.http.client.entity.GzipDecompressingEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.util.EntityUtils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import java.io.IOException;/** * ${DESCRIPTION} * * @author Ricky Fung * @create 2016-06-24 13:11 */public final class HttpUtils {    private static final Logger logger = LoggerFactory.getLogger(HttpUtils.class);    public static final int CONNECTION_TIMEOUT = 60*1000;    public static final int SOCKET_TIMEOUT = 60*1000;    public static final String USER_AGENT_HEADER = "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36";    public static final String ACCEPT_HEADER = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";    public static final String ACCEPT_LANGUAGE_HEADER = "zh-CN,zh;q=0.8,en;q=0.6";    private static final  CloseableHttpClient httpclient = HttpClientManager.getHttpClient();;    public static String post(String url, String data) throws IOException {        HttpPost httpPost = new HttpPost(url);        httpPost.setHeader("User-Agent", USER_AGENT_HEADER);        httpPost.setHeader("Accept", ACCEPT_HEADER);        httpPost.setHeader("Accept-Language", ACCEPT_LANGUAGE_HEADER);        RequestConfig requestConfig = RequestConfig.custom()                .setConnectTimeout(CONNECTION_TIMEOUT)                .setSocketTimeout(SOCKET_TIMEOUT).build();        httpPost.setConfig(requestConfig);        CloseableHttpResponse response = null;        try {            StringEntity stringEntity = new StringEntity(data, "UTF-8");            stringEntity.setContentType("text/json");            httpPost.setEntity(stringEntity);            httpPost.setHeader("Content-type", "application/json");            response = httpclient.execute(httpPost);            int code = response.getStatusLine().getStatusCode();            if (code == HttpStatus.SC_OK) {                HttpEntity entity = response.getEntity();                if(entity!=null){                    // Gzip                    if (entity.getContentEncoding()!=null && "GZIP".equalsIgnoreCase(entity                            .getContentEncoding().getName())) {                        entity = new GzipDecompressingEntity(entity);                    }                    try{                        return EntityUtils.toString(entity);                    }finally{                        EntityUtils.consume(entity);                    }                }            } else {                logger.error("server:{} response error, statusCode:{}", url, code);            }        } finally {            if (response != null) {                try {                    response.close();                } catch (IOException e) {                    logger.error("post error", e);                }            }        }        return null;    }}

2、SpringMVC Controller处理

package com.ricky.codelab.springmvc.controller;import com.alibaba.fastjson.JSON;import com.ricky.codelab.springmvc.domain.Order;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;import java.util.concurrent.atomic.AtomicLong;/** * ${DESCRIPTION} * * @author Ricky Fung * @create 2016-07-26 10:08 */@Controller@RequestMapping("/order")public class OrderController {    private AtomicLong counter = new AtomicLong(1);    @RequestMapping(value = "/create", method = RequestMethod.POST)    @ResponseBody    public Oder create(@RequestBody String data){        System.out.println("data:"+data);        Order order = JSON.parseObject(data, Oder.class);        order.setId(counter.getAndIncrement());        return order;    }    @RequestMapping(value = "/add", method = RequestMethod.POST)    @ResponseBody    public Oder create(@RequestBody Order oder){        System.out.println("order:"+ oder);        oder.setId(counter.getAndIncrement());        return oder;    }}

资源下载

https://github.com/ByteAce/springmvc4-samples