restTemplate.postForObject 发送POST请求

1、引用依赖文档：

<?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 http://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>2.1.6.RELEASE</version>
      <relativePath/> <!-- lookup parent from repository -->
   </parent>
   <groupId>com.xibei</groupId>
   <artifactId>demo</artifactId>
   <version>0.0.1-SNAPSHOT</version>
   <name>demo</name>
   <description>Demo project for Spring Boot</description>

   <properties>
      <java.version>1.8</java.version>
   </properties>

   <dependencies>
      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-web</artifactId>
      </dependency>

      <dependency>
         <groupId>org.projectlombok</groupId>
         <artifactId>lombok</artifactId>
         <optional>true</optional>
      </dependency>
      <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-test</artifactId>
         <scope>test</scope>
      </dependency>
      <dependency>
         <groupId>com.alibaba</groupId>
         <artifactId>fastjson</artifactId>
         <version>1.2.39</version>
      </dependency>
   </dependencies>

   <build>
      <plugins>
         <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
         </plugin>
      </plugins>
   </build>
</project>

2、具体内容

package com.xibei.util;

import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.client.RestTemplate;

import java.nio.charset.Charset;

public class RestTemplateUtil {
    /**
     * 创建指定字符集的RestTemplate
     *
     * @param charset
     * @return
     */
    public static RestTemplate getInstance(String charset)
    {
        RestTemplate restTemplate = new RestTemplate();
        restTemplate.getMessageConverters().add(new StringHttpMessageConverter(Charset.forName(charset)));
        return restTemplate;
    }
}

3、详细实现过程

package com.xibei;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.JSONPathException;
import com.xibei.util.RestTemplateUtil;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;



import java.util.List;

@RestController
public class DoTransferData {
    @RequestMapping(value = "/xibei",method = RequestMethod.GET)
    public String Transer() {
        String result ="";
        try {
            JSONObject json = new JSONObject();
            JSONObject mxjson = new JSONObject();
            json.put("deliverCode", "CS123456789");
            json.put("deliverOrgCode", "7001211");
            json.put("deliverOrgName", "北京康安利丰农业有限公司");
            json.put("deliverTime", "2019-06-25 10:10:10");
            json.put("retailCode", "30005");
            json.put("spareField1", "");
            json.put("spareField2", "");

            mxjson.put("deliverPrice", "2");
            mxjson.put("deliverQty", "2");
            mxjson.put("delverAmount", "2");
            mxjson.put("orderCode", "PO300051906190004");
            mxjson.put("productCode", "11100762");
            mxjson.put("productName", "猪五花肉片4*0.4(25kg)");
            mxjson.put("spareDetailField1", "");
            mxjson.put("spareDetailField2", "");
            mxjson.put("spareDetailField3", "");
            mxjson.put("spareDetailField4", "");

            List list = new JSONArray();
            list.add(mxjson);
            json.put("detailDtoList", list);

            HttpHeaders headers = new HttpHeaders();
            headers.add("Content-Type", "application/json");
            headers.add("x-auth-token", "token内容");

            RestTemplate restTemplate = RestTemplateUtil.getInstance("utf-8");
            HttpEntity<Object> entity = new HttpEntity<Object>(json, headers);

            String url = "https://apit.xibei.com/order-service/order/external/acceptReceiptItems";

            result = restTemplate.postForObject(url, entity, String.class);
            //System.out.println(result);
            //System.out.println(json);
        } catch (JSONPathException e) {
            System.out.println(e.toString());
        }
        return result;
    }
}

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原文链接：restTemplate.postForObject 发送POST请求，转载请注明来源！