微信小程序连接java后端-微信小程序后端-微信小程序后端JAVA-即速应用

微信小程序连接java后端-微信小程序后端-微信小程序后端JAVA

浏览量：2259 时间：2020-04-06 来源：佛系键盘手

1.
所需环境1.微信开发者工具2.eclipse小程序端Java后端运行结果注意事项不校验合法域名在详情中，这个勾勾一定要勾上，不然就会这样
2.
最后代码附上w微信端wxml:
formbuttonbindtap'setcontent'发送/button/form3.
微信端js：
setcontent:function(){wx.request({url:'http://localhost:8080/servletTest/test',data:{name:"tom",},method:'get',header:{'content-type':'application/x-www-form-urlencoded'//默认值},success:function(res){console.log(res.data);},fail:function(res){console.log("反馈未提交，请检查网络");}})}4.
java后端的servlet：
packageservletTest;importjava.io.IOException;importjava.io.Writer;importjavax.servlet.ServletException;importjavax.servlet.http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse;publicclassservlet02extendsHttpServlet{privatestaticfinallongserialVersionUID1L;protectedvoiddoGet(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{//TODOAuto-generatedmethodstubresponse.setContentType("text/html;charsetutf-8");/*设置响应头允许ajax跨域访问*/response.setHeader("Access-Control-Allow-Origin","*");/*星号表示所有的异域请求都可以接受，*/response.setHeader("Access-Control-Allow-Methods","GET,POST");//获取微信小程序get的参数值并打印Stringnamerequest.getParameter("name");System.out.println("姓名"+name);//返回值给微信小程序Writeroutresponse.getWriter();out.write("后台已连接");out.flush();}protectedvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{//TODOAuto-generatedmethodstubdoGet(request,response);}}