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Java(Springboot)项目调用第三方WebService接口实现代码

作者：YD_1989

这篇文章主要介绍了如何使用Java调用WebService接口,传递XML参数,获取XML响应,并将其解析为JSON格式,文中详细描述了WSDL文档的使用、HttpClientBuilder和Apache Axis两种调用方式的具体实现步骤,需要的朋友可以参考下

WebService 简介

WebService 接口的发布通常一般都是使用 WSDL（web service descriptive language）文件的样式来发布的，该文档包含了请求的参数信息，返回的结果信息，我们需要根据 WSDL 文档的信息来编写相关的代码进行调用WebService接口。

业务场景描述

目前需要使用 java 调用一个WebService接口，传递参数的数据类型为 xml，返回的也是一个Xml的数据类型，需要实现调用接口，获取到xml 之后并解析为 Json 格式数据，并返回所需结果给前端。

WSDL 文档

请求地址及方式

接口地址请求方式
http://aabb.balabala.com.cn/services/BD?wsdlSOAP

接口请求/响应报文

<?xml version="1.0" encoding="UTF-8"?>
<TransData>
  <BaseInfo>
    <PrjID>BBB</PrjID>                  
    <UserID>UID</UserID>                                
  </BaseInfo>
  <InputData>
    <WriteType>220330</WriteType>   
    <HandCode>8</HandCode>                
  </InputData>
  <OutputData>
    <ResultCode>0</ResultCode>          
    <ResultMsg>获取权限编号成功！</ResultMsg>                            
    <OrgniseNo>SHUG98456</OrgniseNo> 
  </OutputData>
</TransData>

代码实现

1、接口请求/响应报文 JSON 准备

首先准备好所需要的请求参数和返回数据的实体类

（1）TransData

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "TransData")
@XmlAccessorType(XmlAccessType.FIELD)
public class TransDataDto {

    @XmlElement(name = "BaseInfo")
    private BaseInfoDto baseInfo;

    @XmlElement(name = "InputData")
    private InputDataDto inputData;

    @XmlElement(name = "OutputData")
    private OutputDataDto outputData;

    public BaseInfoDto getBaseInfo() {
        return baseInfo;
    }

    public void setBaseInfo(BaseInfoDto baseInfo) {
        this.baseInfo = baseInfo;
    }

    public InputDataDto getInputData() {
        return inputData;
    }

    public void setInputData(InputDataDto inputData) {
        this.inputData = inputData;
    }

    public OutputDataDto getOutputData() {
        return outputData;
    }

    public void setOutputData(OutputDataDto outputData) {
        this.outputData = outputData;
    }

}

（2）BaseInfo、InputData、OutputData

BaseInfo

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "BaseInfo")
@XmlAccessorType(XmlAccessType.FIELD)
public class BaseInfoDto {

    @XmlElement(name = "PrjID")
    private String prjId;

    @XmlElement(name = "UserID")
    private String userId;

    public String getPrjId() {
        return prjId;
    }

    public void setPrjId(String prjId) {
        this.prjId = prjId;
    }

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }
}

InputData

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "InputData")
@XmlAccessorType(XmlAccessType.FIELD)
public class InputDataDto {

    @XmlElement(name = "WriteType")
    private String writeType;

    @XmlElement(name = "HandCode")
    private String handCode;

    public String getWriteType() {
        return writeType;
    }

    public void setWriteType(String writeType) {
        this.writeType = writeType;
    }

    public String getHandCode() {
        return handCode;
    }

    public void setHandCode(String handCode) {
        this.handCode = handCode;
    }
}

OutputData

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "OutputData")
@XmlAccessorType(XmlAccessType.FIELD)
public class OutputDataDto {

    @XmlElement(name = "ResultCode")
    private String resultCode;

    @XmlElement(name = "ResultMsg")
    private String resultMsg;

    @XmlElement(name = "OrgniseNo")
    private String orgniseNo;

    public String getResultCode() {
        return resultCode;
    }

    public void setResultCode(String resultCode) {
        this.resultCode = resultCode;
    }

    public String getResultMsg() {
        return resultMsg;
    }

    public void setResultMsg(String resultMsg) {
        this.resultMsg = resultMsg;
    }

    public String getOrgniseNo() {
        return orgniseNo;
    }

    public void setOrgniseNo(String orgniseNo) {
        this.orgniseNo = orgniseNo;
    }
}

2、业务逻辑实现

（1）HttpClientBuilder 调用 WebService 接口实现

1.引入 jar 包

  			<!-- Jackson Core -->
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-core</artifactId>
                <version>2.15.0</version>
            </dependency>

            <!-- Jackson Databind -->
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>2.15.0</version>
            </dependency>

            <!-- Jackson Dataformat XML -->
            <dependency>
                <groupId>com.fasterxml.jackson.dataformat</groupId>
                <artifactId>jackson-dataformat-xml</artifactId>
                <version>2.15.0</version>
            </dependency>

2.业务逻辑

package com.ruoyi.system.service;

import com.fasterxml.jackson.dataformat.xml.XmlMapper;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.ruoyi.system.dto.soap.BaseInfoDto;
import com.ruoyi.system.dto.soap.InputDataDto;
import com.ruoyi.system.dto.soap.OutputDataDto;
import com.ruoyi.system.dto.soap.TransDataDto;
import org.apache.http.HttpEntity;
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.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import java.nio.charset.Charset;
import java.util.Objects;

@Service
public class SoapTestService {

    private static final Logger log = LoggerFactory.getLogger(SoapTestService.class);

    public String getFinalValidNo(String wsdlUrl, String soapActon) {
        String finalValidNo = "";
        TransDataDto transDataDto = new TransDataDto();
        BaseInfoDto baseInfoDto = new BaseInfoDto();
        baseInfoDto.setPrjId("1");
        baseInfoDto.setUserId("1");
        InputDataDto inputDataDto = new InputDataDto();
        inputDataDto.setHandCode("1");
        inputDataDto.setWriteType("1");
        transDataDto.setBaseInfo(baseInfoDto);
        transDataDto.setInputData(inputDataDto);
        String soapParam = "";
        try {
            soapParam = transDataDtoToXmlStr(transDataDto);
            String soapResultStr = doSoapCall(wsdlUrl, soapParam, soapActon);
            TransDataDto transDataResponse = xmlToTransDataDto(soapResultStr);
            if (Objects.nonNull(transDataResponse)) {
                OutputDataDto outputDataDto = transDataDto.getOutputData();
                if (!"0".equals(outputDataDto.getResultCode())) {
                    log.error("获取权限编号失败，详细信息：{}", outputDataDto.getResultMsg());
                    throw new RuntimeException(outputDataDto.getResultMsg());
                }
                finalValidNo = outputDataDto.getOrgniseNo();
            }
        } catch (JsonProcessingException jp) {
            log.error("json 转 xml 异常，详细错误信息：{}", jp.getMessage());
            throw new RuntimeException(jp.getMessage());
        }
        return finalValidNo;
    }


    /**
     * @param wsdlUrl:wsdl   地址
     * @param soapParam:soap 请求参数
     * @param SoapAction
     * @return
     */
    private String doSoapCall(String wsdlUrl, String soapParam, String SoapAction) {
        // 返回体
        String responseStr = "";
        // 创建HttpClientBuilder
        HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
        // HttpClient
        CloseableHttpClient closeableHttpClient = httpClientBuilder.build();
        HttpPost httpPost = new HttpPost(wsdlUrl);
        try {
            httpPost.setHeader("Content-Type", "text/xml;charset=UTF-8");
            httpPost.setHeader("SOAPAction", SoapAction);
            StringEntity data = new StringEntity(soapParam,
                    Charset.forName("UTF-8"));
            httpPost.setEntity(data);
            CloseableHttpResponse response = closeableHttpClient
                    .execute(httpPost);
            HttpEntity httpEntity = response.getEntity();
            if (httpEntity != null) {
                // 打印响应内容
                responseStr = EntityUtils.toString(httpEntity, "UTF-8");
                log.info("调用 soap 请求返回结果数据：{}", responseStr);
            }
        } catch (IOException e) {
            log.error("调用 soap 请求异常，详细错误信息：{}", e.getMessage());
        } finally {
            // 释放资源
            if (closeableHttpClient != null) {
                try {
                    closeableHttpClient.close();
                } catch (IOException ioe) {
                    log.error("释放资源失败，详细信息：{}", ioe.getMessage());
                }
            }
        }
        return responseStr;
    }


    /**
     * @param transDataDto
     * @return
     * @throws JsonProcessingException
     * @Des json 转 xml 字符串
     */
    private String transDataDtoToXmlStr(TransDataDto transDataDto) throws JsonProcessingException {
        // 将 JSON 转换为 XML 字符串
        XmlMapper xmlMapper = new XmlMapper();
        StringBuilder stringBuilder = new StringBuilder("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        stringBuilder.append(xmlMapper.writerWithDefaultPrettyPrinter().writeValueAsString(transDataDto));
        return stringBuilder.toString();
    }

    /**
     * @param xmlResponse
     * @return
     * @throws JsonProcessingException
     * @Des xml 转 json
     */
    private TransDataDto xmlToTransDataDto(String xmlResponse) throws JsonProcessingException {
        // 将 XML 字符串转换为 Java 对象
        XmlMapper xmlMapper = new XmlMapper();
        TransDataDto transDataDto = xmlMapper.readValue(xmlResponse, TransDataDto.class);
        return transDataDto;
    }

}

（2）apache axis 方式调用

1.引入依赖

    <dependency>
            <groupId>org.apache.axis</groupId>
            <artifactId>axis</artifactId>
            <version>1.4</version>
    </dependency>

2.业务逻辑

package com.ruoyi.system.service;

import org.apache.axis.client.Call;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import org.apache.axis.client.Service;

import java.rmi.RemoteException;

@Component
public class ApacheAxisTestService {

    private static final Logger log = LoggerFactory.getLogger(ApacheAxisTestService.class);

    public String sendWebService() {

        String requestXml = "";
        String soapResponseStr = "";
        String wsdlUrl = "";
        Service service = new Service();
        Object[] obj = new Object[1];
        obj[0] = requestXml;
        log.info("调用soap接口wsdl地址：{},请求参数：{}", wsdlUrl, requestXml);
        try {
            Call call = (Call) service.createCall();
            call.setTargetEndpointAddress(wsdlUrl);
            call.setTimeout(Integer.valueOf(30000));
            call.setOperation("doService");
            soapResponseStr = (String) call.invoke(obj);
        } catch (RemoteException r) {
            log.error("调用 soap 接口失败，详细错误信息：{}", r.getMessage());
            throw new RuntimeException(r.getMessage());
        }
        return soapResponseStr;
    }
}

注意！！！！！！！如果现在开发WebService，用的大多是axis2或者CXF。

有时候三方给的接口例子中会用到标题上面的类，这个在axis2中是不存在，这两个类属于axis1中的！！！

总结 

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