【Harmony OS】【JAVA UI】鸿蒙应用如何集成OKHttp网络三方库

推荐原创

华为开发者论坛 2022-08-04 14:54:35 博主文章分类：HarmonyOS ©著作权

文章标签 JAVA UI OKHttp 文章分类 其它移动开发 阅读数196

准备get请求接

【Harmony OS】【JAVA UI】鸿蒙应用如何集成OKHttp网络三方库_JAVA UI

Post接口

【Harmony OS】【JAVA UI】鸿蒙应用如何集成OKHttp网络三方库_OKHttp_02

1. OKHttp

2. Android OkHttp常用详解

1参考 OKHttp的方法三

在项目级别的build.gradle添加如下代码

allprojects {
repositories {
maven {
url 'https://repo.huaweicloud.com/repository/maven/'
}
maven {
url 'https://developer.huawei.com/repo/'

在entry的build.gradle添加如下代码

'io.openharmony.tpc.thirdlib:okgo:1.0.2'
implementation 'io.openharmony.tpc.thirdlib:okrx:1.0.2'
implementation 'io.openharmony.tpc.thirdlib:okrx2:1.0.2'
implementation 'io.openharmony.tpc.thirdlib:okserver:1.0.2'

在entry的config.json添加权限代码如下

"reqPermissions": [
{
"name": "ohos.permission.INTERNET"

如果接口是https的话需要在config.json的deviceConfig里添加如下代码

"deviceConfig": {
"default": {
"network": {
"cleartextTraffic": true

在layout的xml中写三个Text标签，第一个Text用于触发get请求的事件，第二个Text用于触发Post请求的事件，第三个Text用于显示结果，代码和效果图如下

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
xmlns:ohos="http://schemas.huawei.com/res/ohos"
ohos:height="match_parent"
ohos:width="match_parent"
ohos:alignment="horizontal_center"
ohos:orientation="vertical">

<Text
ohos:id="$+id:text_type_get"
ohos:height="100vp"
ohos:width="match_parent"
ohos:text_alignment="center"
ohos:layout_alignment="horizontal_center"
ohos:text="Get请求"
ohos:text_size="40vp"
<Text
ohos:id="$+id:text_type_Post"
ohos:height="100vp"
ohos:text_alignment="center"
ohos:width="match_parent"
ohos:background_element="#ed6262"
ohos:layout_alignment="horizontal_center"
ohos:text="Post请求"
ohos:text_size="40vp"
<Text
ohos:id="$+id:text_result"
ohos:height="match_parent"
ohos:multiple_lines="true"
ohos:text_alignment="center"
ohos:width="match_parent"
ohos:layout_alignment="horizontal_center"
ohos:text="显示结果"
ohos:text_size="40vp"

</DirectionalLayout>

【Harmony OS】【JAVA UI】鸿蒙应用如何集成OKHttp网络三方库_JAVA UI_08

Get请求实现

在Get的Text点击事件，实现 Get请求和请求成功之后和请求失败之后（参考线程管理开发指导）需要将子线程切到Ui线程进行显示数据，代码如下

new Component.ClickedListener() {
@Override
public void onClick(Component component) {
OkHttpClient client = new OkHttpClient();
Request.Builder requestBuilder = new Request.Builder();
HttpUrl.Builder urlBuilder=HttpUrl.parse("http://web.juhe.cn/environment/air/cityair").newBuilder();//todo 接口链接
urlBuilder.addQueryParameter("city","shanghai");//todo 参数
urlBuilder.addQueryParameter("Key","******");// todo 密钥 key自己申请
requestBuilder.url(urlBuilder.build());
Call call = client.newCall(requestBuilder.build());
call.enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
//todo 失败回调需要回到主线程显示结果
getUITaskDispatcher().asyncDispatch(new Runnable() {
@Override
public void run() {
textResult.setText(e.getMessage());
}
});

}

@Override
public void onResponse(Call call, Response response) throws IOException {
if(response.isSuccessful()){
String result = response.body().string();
//todo 处理UI需要切换到UI线程处理
getUITaskDispatcher().asyncDispatch(new Runnable() {
@Override
public void

Post请求实现

在Post的Text实现点击事件，具体参考 Android OkHttp常用详解，代码如下

TextPost.setClickedListener(new Component.ClickedListener() {
@Override
public void onClick(Component component) {
OkHttpClient client = new OkHttpClient();
FormBody body = new FormBody.Builder()
.add("key","*****")// todo 密钥 key自己申请
.add("date","10/1")//todo 日期参数
.build();
Request request = new Request.Builder()
.url("http://v.juhe.cn/todayOnhistory/queryEvent.php")
.post(body)
.build();
Call call = client.newCall(request);
call.enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
//todo 失败回调需要回到主线程显示结果
getUITaskDispatcher().asyncDispatch(new Runnable() {
@Override
public void run() {
textResult.setText(e.getMessage());
}
});
}

@Override
public void onResponse(Call call, Response response) throws IOException {
if(response.isSuccessful()){
String result = response.body().string();
//处理UI需要切换到UI线程处理
//todo 失败回调需要回到主线程显示结果
getUITaskDispatcher().asyncDispatch(new Runnable() {
@Override
public void

具体代码如下

java 代码

package com.harmony.alliance.myapplication.slice;

import com.harmony.alliance.myapplication.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Component;
import ohos.agp.components.Text;
import okhttp3.*;

import java.io.IOException;

public class MainAbilitySlice extends AbilitySlice
Text TextGet,TextPost,textResult;
@Override
public void onStart(Intent intent) {
super.onStart(intent);
super.setUIContent(ResourceTable.Layout_ability_main);
TextGet=findComponentById(ResourceTable.Id_text_type_get);
TextPost=findComponentById(ResourceTable.Id_text_type_Post);
textResult=findComponentById(ResourceTable.Id_text_result);
TextGet.setClickedListener(new Component.ClickedListener() {
@Override
public void onClick(Component component) {
OkHttpClient client = new OkHttpClient();
Request.Builder requestBuilder = new Request.Builder();
HttpUrl.Builder urlBuilder=HttpUrl.parse("http://web.juhe.cn/environment/air/cityair").newBuilder();//todo 接口链接
urlBuilder.addQueryParameter("city","shanghai");//todo 参数
urlBuilder.addQueryParameter("Key","6fba58dc50a8e3d92e8a2f63d25c7750");// todo key 密钥
requestBuilder.url(urlBuilder.build());
Call call = client.newCall(requestBuilder.build());
call.enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
//todo 失败回调需要回到主线程显示结果
getUITaskDispatcher().asyncDispatch(new Runnable() {
@Override
public void run() {
textResult.setText(e.getMessage());
}
});

}

@Override
public void onResponse(Call call, Response response) throws IOException {
if(response.isSuccessful()){
String result = response.body().string();
//todo 处理UI需要切换到UI线程处理
getUITaskDispatcher().asyncDispatch(new Runnable() {
@Override
public void run() {
textResult.setText(result);
}
});

}
}
});
}
});
TextPost.setClickedListener(new Component.ClickedListener() {
@Override
public void onClick(Component component) {
OkHttpClient client = new OkHttpClient();
FormBody body = new FormBody.Builder()
.add("key","7496ca7e5e12c408ef14e465c2bacc79")// todo 密钥
.add("date","10/1")//todo 日期参数
.build();
Request request = new Request.Builder()
.url("http://v.juhe.cn/todayOnhistory/queryEvent.php")
.post(body)
.build();
Call call = client.newCall(request);
call.enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
//todo 失败回调需要回到主线程显示结果
getUITaskDispatcher().asyncDispatch(new Runnable() {
@Override
public void run() {
textResult.setText(e.getMessage());
}
});
}

@Override
public void onResponse(Call call, Response response) throws IOException {
if(response.isSuccessful()){
String result = response.body().string();
//处理UI需要切换到UI线程处理
//todo 失败回调需要回到主线程显示结果
getUITaskDispatcher().asyncDispatch(new Runnable() {
@Override
public void run() {
textResult.setText(result);
}
});
}
}
});
}
});
}

@Override
public void onActive() {
super.onActive();
}

@Override
public void onForeground(Intent intent) {
super.onForeground(intent);
}
}

xml 代码

运行效果如下

【Harmony OS】【JAVA UI】鸿蒙应用如何集成OKHttp网络三方库_JAVA UI_13

欲了解更多更全技术文章，欢迎访问 https://developer.huawei.com/consumer/cn/forum/?ha_source=zzh

【Harmony OS】【JAVA UI】鸿蒙应用如何集成OKHttp网络三方库

【Harmony OS】【JAVA UI】鸿蒙应用如何集成OKHttp网络三方库

准备get请求接

Post接口

在项目级别的build.gradle添加如下代码

在entry的build.gradle添加如下代码

Get请求实现

Post请求实现

java 代码

xml 代码

运行效果如下

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