Mailgun Java API发送HTML电子邮件
作者：互联网
我想要得到
“html”：“…使用与MailGun API的Unirest HTTP通信在Java中使用HTML页面的全部内容…”.
到目前为止,我已经验证了我的域名,通过API成功发送了一封电子邮件,并通过Java中的API成功发送了一封HTML(基本)电子邮件.
每当我尝试使用任何电子邮件模板时,我都无法发送电子邮件(通过API,在Java中).我试图使用此处提供的建议电子邮件模板：https://github.com/mailgun/transactional-email-templates/tree/master/templates.
我发送电子邮件的代码符合文档
public static JsonNode sendSimpleMessage() throws UnirestException {
HttpResponse<com.mashape.unirest.http.JsonNode> request = Unirest.post("https://api.mailgun.net/v3/sub.domain.com" + "/messages")
.basicAuth("api", API_KEY)
.queryString("from", "name <test@domain.com>")
.queryString("to", "myemail@gmail.com")
.queryString("subject", "Great")
.queryString("html", returnEmail())
.asJson();
return request.getBody();
}
public static String returnEmail() {
try {
return StreamUtils.copyToString(new ClassPathResource("email.html").getInputStream(), Charset.defaultCharset());
} catch (IOException e) {
e.printStackTrace();
}
return "<html><strong>not today</strong></html>";
}
并且email.html包含上述电子邮件(https://github.com/mailgun/transactional-email-templates/tree/master/templates)或任何HTML电子邮件中的示例,因为没有工作.
我得到的错误是：
com.mashape.unirest.http.exceptions.UnirestException: java.lang.RuntimeException: java.lang.RuntimeException: org.json.JSONException: A JSONArray text must start with '[' at 1 [character 2 line 1].
堆栈跟踪：
com.mashape.unirest.http.exceptions.UnirestException: java.lang.RuntimeException: java.lang.RuntimeException: org.json.JSONException: A JSONArray text must start with '[' at 1 [character 2 line 1]
at com.mashape.unirest.http.HttpClientHelper.request(HttpClientHelper.java:143)
at com.mashape.unirest.request.BaseRequest.asJson(BaseRequest.java:68)
at com..application.ApplicationController.sendSimpleMessage(ApplicationController.java:78)
at com.application.ApplicationController.create(ApplicationController.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: org.json.JSONException: A JSONArray text must start with '[' at 1 [character 2 line 1]
at com.mashape.unirest.http.HttpResponse.<init>(HttpResponse.java:106)
at com.mashape.unirest.http.HttpClientHelper.request(HttpClientHelper.java:139)
... 57 more
Caused by: java.lang.RuntimeException: org.json.JSONException: A JSONArray text must start with '[' at 1 [character 2 line 1]
at com.mashape.unirest.http.JsonNode.<init>(JsonNode.java:51)
at com.mashape.unirest.http.HttpResponse.<init>(HttpResponse.java:95)
... 58 more
Caused by: org.json.JSONException: A JSONArray text must start with '[' at 1 [character 2 line 1]
at org.json.JSONTokener.syntaxError(JSONTokener.java:433)
at org.json.JSONArray.<init>(JSONArray.java:105)
at org.json.JSONArray.<init>(JSONArray.java:144)
at com.mashape.unirest.http.JsonNode.<init>(JsonNode.java:48)
... 59 more
如果我只是将所有HTML粘贴为字符串而不是returnEmail(),我也会得到同样的错误.如果我在发送之前转义特殊字符和/或缩小HTML,我也会收到相同的错误消息.
现在我假设Unirest是一个http库,它从queryString键和值构建一个JSON.虽然它似乎与simpel html一样工作,如“HTML版本无论如何,它肯定不喜欢任何冗长/’正常’的HTML,如电子邮件模板.
您能否使用Java API建议任何有关html电子邮件的工作示例,或者有关如何发送html并拥有有效json的任何提示？
万分感谢
解决方法:
从报告的错误消息：
org.json.JSONException: A JSONArray text must start with '[' at 1 [character 2 line 1].
我不确定Unirest试图做什么,但它似乎试图将某些内容编码为JSON.但是Mailgun API不需要JSON编码,你可以使用好的旧应用程序/ x-www-form-urlencoded编码.查看Unirest文档,看看是否可以强制使用其他编码类型.
或者,您可以使用this other library(免责声明：我是开发人员),如问题评论中所述. OP抱怨不能使用复杂的html,如here所述.我的意思是内容帮助器机制,你使用链式方法调用(DSL风格)构建HTML内容.如果您已经拥有HTML,则只需将其传递给html()方法调用,如注释中所述.
你的代码看起来有点像这样：
// somewhere else
Configuration configuration = new Configuration()
.domain("sub.domain.com")
.apiKey(API_KEY)
.from("name", "test@domain.com");
public static void sendSimpleMessage() {
Mail.using(configuration)
.to("myemail@gmail.com")
.subject("Great")
.html(returnEmail())
.build()
.send();
}
标签：html,mailgun,unirest,java,email 来源： https://codeday.me/bug/20190828/1746978.html