图片转换工具开发
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4
njcn-plugin/README.md
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4
njcn-plugin/README.md
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# 本模块用于收录各种插件工具
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## HttpClient模块
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封装RestTemplate用于远程接口访问；
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36
njcn-plugin/RestTemplate-plugin/pom.xml
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36
njcn-plugin/RestTemplate-plugin/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.njcn</groupId>
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<artifactId>njcn-plugin</artifactId>
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<version>1.0.0</version>
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</parent>
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<artifactId>RestTemplate-plugin</artifactId>
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<properties>
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<maven.compiler.source>8</maven.compiler.source>
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<maven.compiler.target>8</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.njcn</groupId>
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<artifactId>njcn-common</artifactId>
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<version>0.0.1</version>
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</dependency>
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<!-- Apache HttpClient -->
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<dependency>
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<groupId>org.apache.httpcomponents</groupId>
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<artifactId>httpclient</artifactId>
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<version>4.5.13</version>
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</dependency>
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</dependencies>
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</project>
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package com.njcn.http.config;
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import com.njcn.http.util.RestTemplateUtil;
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import org.apache.http.impl.client.CloseableHttpClient;
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import org.apache.http.impl.client.HttpClients;
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import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
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import org.springframework.web.client.RestTemplate;
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/**
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* @author hongawen
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* @version 1.0
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* @data 2025/6/17 11:15
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*/
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@Configuration
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public class RestTemplateConfig {
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@Bean
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public RestTemplate restTemplate() {
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// 创建连接池管理器
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PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
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// 设置最大连接数
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connectionManager.setMaxTotal(200);
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// 设置每个主机的最大连接数
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connectionManager.setDefaultMaxPerRoute(20);
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// 创建HttpClient
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CloseableHttpClient httpClient = HttpClients.custom()
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.setConnectionManager(connectionManager)
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.build();
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// 创建HttpComponentsClientHttpRequestFactory
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HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory(httpClient);
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// 设置连接超时时间（毫秒）
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factory.setConnectTimeout(5000);
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// 设置读取超时时间（毫秒）
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factory.setReadTimeout(5000);
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// 设置连接不够用的等待时间（毫秒）
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factory.setConnectionRequestTimeout(2000);
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return new RestTemplate(factory);
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}
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@Bean
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@ConditionalOnMissingBean
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public RestTemplateUtil restTemplateUtil(RestTemplate restTemplate) {
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return new RestTemplateUtil(restTemplate);
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}
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}
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package com.njcn.http.util;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.core.io.FileSystemResource;
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import org.springframework.http.*;
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import org.springframework.util.LinkedMultiValueMap;
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import org.springframework.util.MultiValueMap;
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import org.springframework.web.client.RestTemplate;
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import org.springframework.web.util.UriComponentsBuilder;
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import java.io.File;
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import java.util.Map;
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/**
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* @author hongawen
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* @version 1.0
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* @data 2025/6/17 11:18
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*/
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@Slf4j
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public class RestTemplateUtil {
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private final RestTemplate restTemplate;
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public RestTemplateUtil(RestTemplate restTemplate) {
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this.restTemplate = restTemplate;
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}
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/**
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* GET请求
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*/
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public <T> T get(String url, Class<T> responseType) {
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return get(url, null, null, responseType);
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}
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/**
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* GET请求（带参数）
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*/
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public <T> T get(String url, Map<String, Object> params, Class<T> responseType) {
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return get(url, params, null, responseType);
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}
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/**
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* GET请求（带参数和请求头）
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*/
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public <T> T get(String url, Map<String, Object> params, HttpHeaders headers, Class<T> responseType) {
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try {
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// 构建URL（带参数）
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UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(url);
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if (params != null) {
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params.forEach(builder::queryParam);
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}
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// 构建请求头
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HttpHeaders requestHeaders = new HttpHeaders();
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if (headers != null) {
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requestHeaders.addAll(headers);
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}
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// 发送请求
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HttpEntity<?> requestEntity = new HttpEntity<>(requestHeaders);
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ResponseEntity<T> response = restTemplate.exchange(
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builder.build().encode().toUri(),
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HttpMethod.GET,
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requestEntity,
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responseType
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);
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return response.getBody();
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} catch (Exception e) {
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log.error("GET请求异常: {}", e.getMessage(), e);
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throw new RuntimeException("GET请求异常", e);
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}
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}
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/**
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* POST请求（JSON数据）
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*/
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public <T> T postJson(String url, Object body, Class<T> responseType) {
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return postJson(url, body, null, responseType);
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}
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/**
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* POST请求（JSON数据，带请求头）
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*/
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public <T> T postJson(String url, Object body, HttpHeaders headers, Class<T> responseType) {
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try {
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// 构建请求头
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HttpHeaders requestHeaders = new HttpHeaders();
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requestHeaders.setContentType(MediaType.APPLICATION_JSON);
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if (headers != null) {
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requestHeaders.addAll(headers);
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}
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// 发送请求
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HttpEntity<?> requestEntity = new HttpEntity<>(body, requestHeaders);
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ResponseEntity<T> response = restTemplate.exchange(
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url,
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HttpMethod.POST,
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requestEntity,
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responseType
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);
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return response.getBody();
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} catch (Exception e) {
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log.error("POST请求异常: {}", e.getMessage(), e);
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throw new RuntimeException("POST请求异常", e);
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}
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}
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/**
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* POST请求（表单数据）
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*/
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public <T> T postForm(String url, Map<String, Object> formData, Class<T> responseType) {
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return postForm(url, formData, null, responseType);
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}
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/**
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* POST请求（表单数据，带请求头）
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*/
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public <T> T postForm(String url, Map<String, Object> formData, HttpHeaders headers, Class<T> responseType) {
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try {
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// 构建表单数据
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MultiValueMap<String, Object> requestBody = new LinkedMultiValueMap<>();
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if (formData != null) {
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formData.forEach((key, value) -> requestBody.add(key, value));
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}
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// 构建请求头
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HttpHeaders requestHeaders = new HttpHeaders();
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requestHeaders.setContentType(MediaType.MULTIPART_FORM_DATA);
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if (headers != null) {
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requestHeaders.addAll(headers);
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}
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// 发送请求
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HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity<>(requestBody, requestHeaders);
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ResponseEntity<T> response = restTemplate.exchange(
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url,
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HttpMethod.POST,
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requestEntity,
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responseType
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);
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return response.getBody();
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} catch (Exception e) {
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log.error("POST表单请求异常: {}", e.getMessage(), e);
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throw new RuntimeException("POST表单请求异常", e);
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}
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}
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/**
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* PUT请求
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*/
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public <T> T put(String url, Object body, Class<T> responseType) {
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return put(url, body, null, responseType);
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}
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/**
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* PUT请求（带请求头）
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*/
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public <T> T put(String url, Object body, HttpHeaders headers, Class<T> responseType) {
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try {
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// 构建请求头
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HttpHeaders requestHeaders = new HttpHeaders();
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requestHeaders.setContentType(MediaType.APPLICATION_JSON);
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if (headers != null) {
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requestHeaders.addAll(headers);
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}
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// 发送请求
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HttpEntity<?> requestEntity = new HttpEntity<>(body, requestHeaders);
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ResponseEntity<T> response = restTemplate.exchange(
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url,
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HttpMethod.PUT,
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requestEntity,
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responseType
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);
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return response.getBody();
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} catch (Exception e) {
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log.error("PUT请求异常: {}", e.getMessage(), e);
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throw new RuntimeException("PUT请求异常", e);
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}
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}
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/**
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* DELETE请求
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*/
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public <T> T delete(String url, Class<T> responseType) {
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return delete(url, null, responseType);
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}
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/**
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* DELETE请求（带请求头）
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*/
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public <T> T delete(String url, HttpHeaders headers, Class<T> responseType) {
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try {
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// 构建请求头
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HttpHeaders requestHeaders = new HttpHeaders();
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if (headers != null) {
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requestHeaders.addAll(headers);
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}
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// 发送请求
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HttpEntity<?> requestEntity = new HttpEntity<>(requestHeaders);
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ResponseEntity<T> response = restTemplate.exchange(
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url,
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HttpMethod.DELETE,
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requestEntity,
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responseType
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);
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return response.getBody();
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} catch (Exception e) {
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log.error("DELETE请求异常: {}", e.getMessage(), e);
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throw new RuntimeException("DELETE请求异常", e);
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}
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}
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/**
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* 文件上传
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*/
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public <T> T uploadFile(String url, File file, String fileParamName, Map<String, Object> params, Class<T> responseType) {
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try {
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// 构建表单数据
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MultiValueMap<String, Object> requestBody = new LinkedMultiValueMap<>();
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requestBody.add(fileParamName, new FileSystemResource(file));
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if (params != null) {
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params.forEach(requestBody::add);
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}
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// 构建请求头
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HttpHeaders requestHeaders = new HttpHeaders();
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requestHeaders.setContentType(MediaType.MULTIPART_FORM_DATA);
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// 发送请求
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HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity<>(requestBody, requestHeaders);
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ResponseEntity<T> response = restTemplate.exchange(
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url,
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HttpMethod.POST,
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requestEntity,
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responseType
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);
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return response.getBody();
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} catch (Exception e) {
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log.error("文件上传异常: {}", e.getMessage(), e);
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throw new RuntimeException("文件上传异常", e);
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}
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}
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/**
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* 文件上传
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*/
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public ResponseEntity<String> uploadFile(String url, File file) {
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try {
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// 构建表单数据
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MultiValueMap<String, Object> requestBody = new LinkedMultiValueMap<>();
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requestBody.add("file", new FileSystemResource(file));
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// 构建请求头
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HttpHeaders requestHeaders = new HttpHeaders();
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requestHeaders.setContentType(MediaType.MULTIPART_FORM_DATA);
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// 发送请求
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HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity<>(requestBody, requestHeaders);
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return restTemplate.exchange(
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url,
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HttpMethod.POST,
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requestEntity,
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String.class
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);
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} catch (Exception e) {
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log.error("文件上传异常: {}", e.getMessage(), e);
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throw new RuntimeException("文件上传异常", e);
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}
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}
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/**
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* 文件下载
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*/
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public byte[] downloadFile(String url) {
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try {
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ResponseEntity<byte[]> response = restTemplate.getForEntity(url, byte[].class);
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return response.getBody();
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} catch (Exception e) {
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log.error("文件下载异常: {}", e.getMessage(), e);
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throw new RuntimeException("文件下载异常", e);
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}
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}
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}
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@@ -0,0 +1,2 @@
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org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
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com.njcn.http.config.RestTemplateConfig
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23
njcn-plugin/pom.xml
Normal file
23
njcn-plugin/pom.xml
Normal file
@@ -0,0 +1,23 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.njcn</groupId>
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<artifactId>BasicDependVersion</artifactId>
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<version>1.0.0</version>
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</parent>
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<packaging>pom</packaging>
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<artifactId>njcn-plugin</artifactId>
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<modules>
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<module>RestTemplate-plugin</module>
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</modules>
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<properties>
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<maven.compiler.source>8</maven.compiler.source>
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<maven.compiler.target>8</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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</project>
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Reference in New Issue
Block a user