第一次写接口的时候，感觉太过笼统，压根不知道接口是个什么东东，，后来自己也查了好多资料，才发现其实接口可以就认为是一个方法，自己多写几种以后就会发现挺简单的，自己整理了一下资料，纯属增强自己的记忆，也方便更多像我这样的菜鸟们参考。。。
下面是我自己写的一个案例，用来同步文件用的这里我用的流，也可以用mutipartfile：
1.调用接口方法：
package com.weichai.test;
import org.apache.cxf.endpoint.Client;
import org.apache.cxf.jaxws.endpoint.dynamic.JaxWsDynamicClientFactory;
import sun.misc.BASE64Encoder;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
public class Test1 {
???public static void main(String[] args) throws Exception {
???????//1，获取一个工厂实例
???????JaxWsDynamicClientFactory FACTORY = JaxWsDynamicClientFactory.newInstance();
???????//2，生成针对指定服务接口URL的客户端
???????Client client = FACTORY.createClient("http://localhost:80/ws/analysisResultService?wsdl");
???????//3，调用指定的方法，注意入参第一个为方法名称，第二个为方法的参数（可以传入一个参数列表，一般为数组）
???????String jsonStr=getPicStr("F://111.txt");
???????System.out.println(jsonStr);
???????String loginName ="111";
???????String pwd ="2222";
???????String[] paraArray={loginName,pwd,jsonStr};
???????Object[] objs = client.invoke("getTaskResultInfo",paraArray);
???????System.out.print(objs[0].toString());
???}
???public static String getPicStr(String imgFile) {
???????InputStream inputStream = null;
???????byte[] data = null;
???????try {
???????????inputStream = new FileInputStream(imgFile);
???????????data = new byte[inputStream.available()];
???????????inputStream.read(data);
???????????inputStream.close();
???????} catch (IOException e) {
???????????e.printStackTrace();
???????}
???????BASE64Encoder encoder = new BASE64Encoder();
???????return encoder.encode(data);
???}
}
2.接口代码编写：
package com.weichai.modules.redpacket.webservice.service;
import com.alibaba.fastjson.JSON;
import com.weichai.common.mapper.JsonMapper;
import com.weichai.modules.redpacket.entity.RpCodeBinging;
import com.weichai.modules.redpacket.service.RpCodeBingingService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import sun.misc.BASE64Decoder;
import javax.jws.WebService;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
@WebService(endpointInterface = "com.weichai.modules.redpacket.webservice.service.AnalysisResultService", serviceName = "analysisResultService",
???????targetNamespace="http://service.webservice.redpacket.modules.weichai.com/")
@Component
public class AnalysisResultServiceImpl implements AnalysisResultService {
???@Autowired
???private RpCodeBingingService rpCodeBingingService;
???????/**
????????* 同步二维码webservice接口
????????* @param
????????* @param
????????* @param
????????* @return
????????*/
???public String getTaskResultInfo(String loginName,String pwd , String fileStr){
???????//判断用户名及密码
???????if(!("111".equals(loginName))||!("2222".equals(pwd))){
???????????return JsonMapper.toJsonString("用户名或密码错误！");
???????}
???????if (null==fileStr){
???????????return JsonMapper.toJsonString("文件为空");
???????}
???????//创建文件目录
???????String path = "c://code";
???????File file = new File(path);
???????if (!file.exists()){
???????????file.mkdir();
???????}
???????try {
???????????String name="112.txt";
???????????//调用方法保存文件到本地
???????????bingingFile(name,path,fileStr);
???????????long l = System.currentTimeMillis();
???????????//new日期对象
???????????Date date = new Date(l);
???????????//转换提日期输出格式
???????????SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
???????????name = dateFormat.format(date)+".txt";
???????????path = "c://codeB";
???????????File fileB = new File(path);
???????????if (!fileB.exists()){
???????????????fileB.mkdir();
???????????}
???????????//备份，调用方法保存文件
???????????bingingFile(name,path,fileStr);
???????????//调用方法获取对象list
???????????List<RpCodeBinging> list = getRpCodeBingingsList();
???????????//调用service将文件保存到数据库中
???????????rpCodeBingingService.saveList(list);
???????} catch (Exception e) {
???????????e.printStackTrace();
???????}
???????return JsonMapper.toJsonString("成功！");
???}
???/**
????* 封装保存文件方法
????* @param name
????* @param path
????* @param fileStr
????*/
???private static void bingingFile(String name,String path,String fileStr){
???????BASE64Decoder decoder = new BASE64Decoder();
???????byte[] b = new byte[0];
???????try {
???????????b = decoder.decodeBuffer(fileStr);
???????????String picPath = path+File.separator+name;
???????????OutputStream out = new FileOutputStream(picPath);
???????????out.write(b);
???????????out.flush();
???????????out.close();
???????} catch (IOException e) {
???????????e.printStackTrace();
???????}
???}
???/**
????* 封装方法，解析.txt文件，返回实体对象list集合
????* @return
????* @throws IOException
????*/
???private static List<RpCodeBinging> getRpCodeBingingsList() throws IOException {
???????InputStream in = new FileInputStream("c://code/112.txt");
???????byte[] dat = new byte[in.available()];
???????BufferedReader reader = new BufferedReader(new InputStreamReader(in,"utf-8"));
???????StringBuffer buffer = new StringBuffer();
???????String data="";
???????while ((data=reader.readLine())!=null){
???????????buffer.append(data);
???????}
???????String text= buffer.toString();
???????List<RpCodeBinging> list= new ArrayList<RpCodeBinging>();
???????list = JSON.parseArray(text,RpCodeBinging.class);
???????return list;
???}
}
---------------------
作者：小小枫叶y叶
来源：CSDN
原文：https://blog.csdn.net/zhang_521521/article/details/79462168
版权声明：本文为博主原创文章，转载请附上博文链接！
如何写一个webService接口
原文地址：https://www.cnblogs.com/GarfieldEr007/p/10140884.html