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+package com.community.huiju.common.welcome;
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+
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+import com.beust.jcommander.internal.Maps;
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+import com.fasterxml.jackson.databind.util.ByteBufferBackedInputStream;
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+import okhttp3.*;
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+
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+import java.io.*;
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+import java.util.Iterator;
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+import java.util.Map;
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+
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+/**
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+ * 封装请求
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+ * @author weiximei
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+ */
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+public class OkHttpRequestUtils {
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+
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+ // 定义请求客户端
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+ private static OkHttpClient client = new OkHttpClient();
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+
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+ /**
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+ * get 请求
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+ * @param url 请求URL
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+ * @return
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+ * @throws Exception
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+ */
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+ public static String doGet(String url) throws Exception {
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+ return doGet(url, Maps.newHashMap());
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+ }
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+
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+
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+ /**
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+ * get 请求
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+ * @param url 请求URL
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+ * @param query 携带参数参数
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+ * @return
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+ * @throws Exception
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+ */
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+ public static String doGet(String url, Map<String, Object> query) throws Exception {
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+
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+ return doGet(url, Maps.newHashMap(), query);
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+ }
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+
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+ /**
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+ * get 请求
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+ * @param url url
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+ * @param header 请求头参数
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+ * @param query 参数
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+ * @return
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+ */
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+ public static String doGet(String url, Map<String, Object> header, Map<String, Object> query) throws Exception {
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+
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+ // 创建一个请求 Builder
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+ Request.Builder builder = new Request.Builder();
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+ // 创建一个 request
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+ Request request = builder.url(url).build();
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+
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+ // 创建一个 HttpUrl.Builder
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+ HttpUrl.Builder urlBuilder = request.url().newBuilder();
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+ // 创建一个 Headers.Builder
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+ Headers.Builder headerBuilder = request.headers().newBuilder();
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+
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+ // 装载请求头参数
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+ Iterator<Map.Entry<String, Object>> headerIterator = header.entrySet().iterator();
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+ headerIterator.forEachRemaining(e -> {
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+ headerBuilder.add(e.getKey(), (String) e.getValue());
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+ });
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+
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+ // 装载请求的参数
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+ Iterator<Map.Entry<String, Object>> queryIterator = query.entrySet().iterator();
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+ queryIterator.forEachRemaining(e -> {
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+ urlBuilder.addQueryParameter(e.getKey(), (String) e.getValue());
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+ });
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+
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+ // 设置自定义的 builder
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+ builder.url(urlBuilder.build()).headers(headerBuilder.build());
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+
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+ try (Response execute = client.newCall(builder.build()).execute()) {
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+ return execute.body().string();
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+ }
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+ }
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+
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+ /**
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+ * post 请求, 请求参数 并且 携带文件上传
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+ * @param url
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+ * @param header
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+ * @param parameter
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+ * @param file
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+ * @return
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+ * @throws Exception
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+ */
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+ public static String doPost(String url, Map<String, Object> header, Map<String, Object> parameter, File file) throws Exception {
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+
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+ // 创建一个请求 Builder
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+ Request.Builder builder = new Request.Builder();
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+ // 创建一个 request
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+ Request request = builder.url(url).build();
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+
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+ // 创建一个 Headers.Builder
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+ Headers.Builder headerBuilder = request.headers().newBuilder();
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+
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+ // 装载请求头参数
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+ Iterator<Map.Entry<String, Object>> headerIterator = header.entrySet().iterator();
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+ headerIterator.forEachRemaining(e -> {
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+ headerBuilder.add(e.getKey(), (String) e.getValue());
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+ });
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+
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+ MultipartBody.Builder requestBuilder = new MultipartBody.Builder();
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+
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+ // 状态请求参数
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+ Iterator<Map.Entry<String, Object>> queryIterator = parameter.entrySet().iterator();
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+ queryIterator.forEachRemaining(e -> {
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+ requestBuilder.addFormDataPart(e.getKey(), (String) e.getValue());
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+ });
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+
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+ if (null != file) {
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+ // application/octet-stream
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+ requestBuilder.addFormDataPart("uploadFiles", file.getName(), RequestBody.create(MediaType.parse("application/octet-stream"), file));
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+ }
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+
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+ // 设置自定义的 builder
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+ builder.headers(headerBuilder.build()).post(requestBuilder.build());
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+
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+ try (Response execute = client.newCall(builder.build()).execute()) {
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+ return execute.body().string();
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+ }
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+ }
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+
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+ /**
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+ * post 请求, 请求参数 并且 携带文件上传二进制流
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+ * @param url
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+ * @param header
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+ * @param parameter
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+ * @param fileName 文件名
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+ * @param fileByte 文件的二进制流
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+ * @return
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+ * @throws Exception
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+ */
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+ public static String doPost(String url, Map<String, Object> header, Map<String, Object> parameter, String fileName, byte [] fileByte) throws Exception {
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+// 创建一个请求 Builder
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+ Request.Builder builder = new Request.Builder();
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+ // 创建一个 request
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+ Request request = builder.url(url).build();
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+
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+ // 创建一个 Headers.Builder
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+ Headers.Builder headerBuilder = request.headers().newBuilder();
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+
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+ // 装载请求头参数
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+ Iterator<Map.Entry<String, Object>> headerIterator = header.entrySet().iterator();
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+ headerIterator.forEachRemaining(e -> {
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+ headerBuilder.add(e.getKey(), (String) e.getValue());
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+ });
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+
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+ MultipartBody.Builder requestBuilder = new MultipartBody.Builder();
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+
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+ // 状态请求参数
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+ Iterator<Map.Entry<String, Object>> queryIterator = parameter.entrySet().iterator();
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+ queryIterator.forEachRemaining(e -> {
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+ requestBuilder.addFormDataPart(e.getKey(), (String) e.getValue());
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+ });
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+
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+ if (fileByte.length > 0) {
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+ // application/octet-stream
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+ requestBuilder.addFormDataPart("uploadFiles", fileName, RequestBody.create(MediaType.parse("application/octet-stream"), fileByte));
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+ }
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+
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+ // 设置自定义的 builder
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+ builder.headers(headerBuilder.build()).post(requestBuilder.build());
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+
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+ try (Response execute = client.newCall(builder.build()).execute()) {
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+ return execute.body().string();
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+ }
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+ }
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+
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+
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+ /**
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+ * post 请求 携带文件上传
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+ * @param url
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+ * @param file
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+ * @return
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+ * @throws Exception
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+ */
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+ public static String doPost(String url, File file) throws Exception {
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+ return doPost(url, Maps.newHashMap(), Maps.newHashMap(), file);
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+ }
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+
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+ /**
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+ * post 请求
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+ * @param url
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+ * @param header 请求头
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+ * @param parameter 参数
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+ * @return
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+ * @throws Exception
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+ */
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+ public static String doPost(String url, Map<String, Object> header, Map<String, Object> parameter) throws Exception {
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+ return doPost(url, header, parameter, null);
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+ }
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+
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+ /**
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+ * post 请求
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+ * @param url
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+ * @param parameter 参数
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+ * @return
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+ * @throws Exception
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+ */
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+ public static String doPost(String url, Map<String, Object> parameter) throws Exception {
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+ return doPost(url, Maps.newHashMap(), parameter, null);
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+ }
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+
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+ public static void main(String[] args) throws Exception {
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+
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+ byte [] fileByte = null;
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+
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+ File file = new File("C:\\Users\\szc\\Pictures\\file-read-4182.jpg");
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+ FileInputStream fileInputStream = new FileInputStream(file);
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+
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+ ByteArrayOutputStream bos = new ByteArrayOutputStream();
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+ byte[] b = new byte[1024];
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+ int n;
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+ while ((n = fileInputStream.read(b)) != -1)
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+ {
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+ bos.write(b, 0, n);
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+ }
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+ fileInputStream.close();
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+ bos.close();
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+ fileByte = bos.toByteArray();
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+
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+
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+ Map<String, Object> queryMap = Maps.newHashMap();
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+ queryMap.put("pageNum","2");
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+ queryMap.put("pageSize","50");
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+ System.out.println(OkHttpRequestUtils.doPost("http://localhost:8080/uploadImage" , Maps.newHashMap(), Maps.newHashMap(),file.getName(), fileByte));
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+
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+ }
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+
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+}
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